GeckoView API Changelog.

⚠️ breaking change and deprecation notices

v134

• ⚠️ WebExtensionController.PromptDelegate.onInstallPrompt is removed see https://bugzilla.mozilla.org/show_bug.cgi?id=1919374 for more details.
• Added support for controlling javascript.options.mem.gc_parallel_marking via GeckoRuntimeSettings.setParallelMarkingEnabled

v133

• Added GeckoSession.getWebCompatInfo that returns a GeckoResult<JSONObject> for web compatability information. (bug 1917273).
• Added isInteractiveWidgetDefaultResizesVisual to tell the preference value of “dom.interactive_widget_default_resizes_visual”.
• Added WebExtension.PermissionPromptResponse Represents a response from WebExtension prompt request.
• Added WebExtension.onInstallPromptRequest Delegate notified when install prompt needs to be shown.
• ⚠️ WebExtensionController.PromptDelegate.onInstallPrompt is deprecated, and it will be deleted in version 134 see https://bugzilla.mozilla.org/show_bug.cgi?id=1919374.
• Added ERROR_SOFT_BLOCKED to WebExtension.InstallException.ErrorCodes, and SOFT_BLOCKLIST toWebExtension.DisabledFlags. (bug 1917852)
• Added InstallException.extensionId, which indicates the ID of the extension that caused the exception.
• Added getFissionEnabled() on GeckoRuntimeSettings and fissionEnabled(boolean) on GeckoRuntimeSettings.Builder to control Fission on Android.
• Added InstallException.extensionVersion, which indicates the version of the extension that caused the exception.
• Added WebExtensionController.INSTALLATION_METHOD_ONBOARDING, which should be used when a WebExtension is installed from the embedder’s onboarding feature.
• Added support for controlling network.fetchpriority.enabled via GeckoRuntimeSettings.setFetchPriorityEnabled
• Added GeckoRuntimeSettings.setCookieBehaviorOptInPartitioning and GeckoRuntimeSettings.setCookieBehaviorOptInPartitioningPBM to control the cookie behavior opt-in partitioning.

v132

-Added getDisableShip to get the setting for Session History in Parent (SHIP)) and disableShip to set the status of SHIP on the GeckoRuntimeSettings builder.

• Added setWebContentIsolationStrategy and getWebContentIsolationStrategy and defined the strategies.

v131

• Added GeckoDisplay.windowInsetsChanged.
• Added GeckoView.addWindowInsetsListener and GeckoView.removeWindowInsetsListener to allow listening WindowInsets changes of Activity’s root window with multiple listeners.
• ⚠️Increased compileSdkVersion to 35 (Android 15)
• ️️⚠️ Removed deprecated GeckoSession.ContentDelegate.onProductUrl.
• Added support for controlling toolkit.telemetry.user_characteristics_ping.current_version via GeckoRuntimeSettings.setUserCharacteristicPingCurrentVersion

v130

• ⚠️ Removed TranslationState constructor, please use the new TranslationState constructor with hasVisibleChange. (bug 1895275)
• Added support for controlling privacy.fingerprintingProtection and privacy.fingerprintingProtection.pbmode via GeckoRuntimeSettings.setFingerprintingProtection
• Added support for controlling privacy.fingerprintingProtection.overrides via GeckoRuntimeSettings.setFingerprintingProtectionOverrides
• Added support for controlling javascript.options.use_fdlibm_for_sin_cos_tan via GeckoRuntimeSettings.setFdlibmMathEnabled

v129

• Added ERROR_ADMIN_INSTALL_ONLY to WebExtension.InstallException.ErrorCodes. (bug 1902222)
• Added ContentDelegate.onHideDynamicToolbar to notify the app that it must fully-collapse its dynamic toolbar (bug 1855990)
• Added PURGED_BOUNCETRACKER and BLOCKED_SUSPICIOUS_FINGERPRINTING to ContentBlockingController.Event. (bug 1901808)

v128

• ⚠️ Removed deprecated GeckoSession.NavigationDelegate.onLocationChange
• Reverted the change to the WebExtension.MetaData related to “prompt” permissions (bug 1879543) and explicitly passed the permissions/origins into the PromptDelegate methods. Required permissions and origins are now available via WebExtension.MetaData.requiredPermissions and WebExtension.MetaData.requiredOrigins.
• Added additional Autocomplete.LoginSelectOption constructor that takes a hint (bug 1877237).
• ⚠️ Deprecated GeckoSession.ContentDelegate.onProductUrl, will now be removed in v131. (bug 1898055)

v127

• ⚠️ Removed deprecated RuntimeTelemetry, GeckoRuntimeSettings.getTelemetryDelegate and GeckoRuntimeSettings.telemetryDelegate.
• Added FINDER_FIND_FORWARD
• Added WebExtensionController.AddonManagerDelegate.onOptionalPermissionsChanged (bug 1892302.
• Added a new TranslationState constructor to add hasVisibleChange and deprecated the prior TranslationsState constructor to be removed in v130.

v125

• ⚠️ Deprecated GeckoSession.NavigationDelegate.onLocationChange, to be removed in v127. (bug 1837601)
• Added GeckoSession.NavigationDelegate.onLocationChange#hasUserGesture. This indicates if a location change was requested while a user gesture was active (e.g., a tap). (bug 1837601)
• Added WebExtension.MetaData.optionalPermissions and WebExtension.MetaData.optionalOrigins which expose the optional and origin optional permissions of an extension (bug 1811900).
• ⚠️ Deprecated RuntimeTelemetry, GeckoRuntimeSettings.getTelemetryDelegate and GeckoRuntimeSettings.telemetryDelegate, to be removed in v127. (bug 1877836)
• Added WebExtension.MetaData.grantedOptionalPermissions and WebExtension.MetaData.grantedOptionalOrigins which expose the granted optional and origin optional permissions of an extension (bug 1879543).
• Added WebExtension.MetaData.promptPermissions which exposes a list of permissions which needs to be prompted to users (bug 1879547).
• ⚠️ Deprecate the WebExtension.MetaData.permissions API to be removed in v131. Please use WebExtension.MetaData.promptPermissions]125.10 instead.
• Added WebExtensionController.addOptionalPermissions and WebExtensionController.removeOptionalPermissions, which allow to add and remove optional permissions/origins of an extension (bug 1796176).

v124

• Added GeckoRuntimeSettings#setTrustedRecursiveResolverMode to enable DNS-over-HTTPS using different resolver modes (bug 1591533).
• Added GeckoRuntimeSettings#setTrustedRecursiveResolverUri to specify the DNS-over-HTTPS server to be used if DoH is enabled (bug 1591533).
• Added GeckoRuntimeSettings#setLargeKeepaliveFactor to increase the keepalive timeout used for a connection (bug 1591533).
• Added PanZoomController.onDragEvent to support drag and drop. (bug 1586471)
• Added WebExtension.MetaData.incognito property. (bug 1875229)

v123

• For Translations, added checkPairDownloadSize and TranslationsException.ERROR_MODEL_LANGUAGE_REQUIRED as an error state.
• ⚠️ Deprecated GeckoSession.requestAnalysisCreationStatus by 124, please use GeckoSession.requestCreateAnalysis instead.
• ⚠️ Removed deprecated GeckoSession.requestAnalysisCreationStatus
• Added GeckoSession.sendPlacementAttributionEvent for sending placement attribution event for a given product recommendation.

v122

• ⚠️ Removed onGetNimbusFeature, please use ExperimentDelegate.onGetExperimentFeature instead.
• Added GeckoSession.reportBackInStock for reporting a Shopping product is back in stock.(bug 1858945)
• Added GeckoSession.requestCreateAnalysis to return a AnalysisStatusResponse that contains a status and a progress field. (bug 1866112)
• Added support for controlling privacy.globalprivacycontrol.enabled and privacy.globalprivacycontrol.pbmode.enabled and privacy.globalprivacycontrol.functionality.enabled via GeckoRuntimeSettings.Builder.globalPrivacyControlEnabled
• Added named translations exceptions via TranslationsException.
• Added ERROR_UNSUPPORTED_ADDON_TYPE to WebExtension.InstallException.ErrorCodes. (bug 1867873)
• Added WebExtensionController.install requires WebExtensionController.InstallationMethod.
• Added runtime options to set and get specific “never translate this site” preferences on RuntimeTranslation.
• Added APIs for toggling privacy.trackingprotection.emailtracking.pbmode.enabled. (bug 1866927.

v121

• Added runtime controller functions. RuntimeTranslation has options for retrieving translation languages and managing language models.
• Added support for controlling cookiebanners.service.enableGlobalRules and cookiebanners.service.enableGlobalRules.subFrames via GeckoSession.ContentDelegate.cookieBannerGlobalRulesEnabled and GeckoSession.ContentDelegate.cookieBannerGlobalRulesSubFramesEnabled.
• Added GeckoSession.sendClickAttributionEvent for sending click attribution event for a given product recommendation.
• Added GeckoSession.sendImpressionAttributionEvent for sending impression attribution event for a given product recommendation.
• Added support for controlling privacy.query_stripping.enabled and privacy.query_stripping.enabled.pbmode via GeckoSession.ContentDelegate.queryParameterStrippingEnabled and GeckoSession.ContentDelegate.queryParameterStrippingPrivateBrowsingEnabled.
• Added support for controlling privacy.query_stripping.allow_list and privacy.query_stripping.strip_list via GeckoSession.ContentDelegate.queryParameterStrippingAllowList and GeckoSession.ContentDelegate.queryParameterStrippingStripList.
• Add WebExtensionController.AddonManagerDelegate.onReady (bug 1859585.
• ⚠️ WebExtensionController.install method will not be implicitly awaiting for the installed extension to be fully started anymore, callers of the install method should now expect the WebExtension.MetaData properties baseUrl and optionsPageUrl to be not be defined yet until the WebExtensionController.AddonManagerDelegate.onReady delegated method has been called (bug 1859585.
• Added additional support for translation settings such as: getLanguageSetting, setLanguageSetting, getNeverTranslateSiteSetting,setNeverTranslateSiteSetting, on the Translations Controller 121.11, and getTranslationsOfferPopup, setTranslationsOfferPopup on the Runtime Settings 121.12.
• Added privacy.trackingprotection.emailtracking.enabled to strict mode for email tracker blocking in GeckoView. Removed unnecessary string manipulation on STP Pref string. 121.13 (bug 1856634.

v120

• Added disableExtensionProcessSpawning for disabling the extension process spawning. (bug 1855405)
• Added DisabledFlags.SIGNATURE for extensions disabled because they aren’t correctly signed. (bug 1847266)
• Added Builder pattern constructors for ReviewAnalysis and Recommendation (part of bug 1846341)
• Added DisabledFlags.APP_VERSION for extensions disabled because they aren’t compatible with the application version. (bug 1847266)
• Added more metadata to the WebExtension class. (bug 1850674, bug 1858925)
• Added session and translations controller. Includes TranslationsController, TranslationsController.SessionTranslation (notably translate), and a translations delegate.

v119

• Added remoteType to GeckoView child crash intent. (bug 1851518)

v118

• Added ExperimentDelegate to allow GeckoView to send and retrieve experiment information from an embedder.
• Added ERROR_BLOCKLISTED to WebExtension.InstallException.ErrorCodes. (bug 1845745)
• Added ContentDelegate.onProductUrl to notify the app when on a supported product page.
• Added GeckoSession.requestAnalysis for requesting product review analysis.
• Added GeckoSession.requestRecommendations for requesting product recommendations given a specific product url.
• Added ERROR_INCOMPATIBLE to WebExtension.InstallException.ErrorCodes. (bug 1845749)
• Added GeckoRuntimeSettings.Builder.extensionsWebAPIEnabled. (bug 1847173)
• Changed GeckoSession.AccountSelectorPrompt: added the Provider to which the Account belongs (bug 1847059)
• Added getExperimentDelegate and setExperimentDelegate to the GeckoSession allow GeckoView to get and set the experiment delegate for the session. Default is to use the runtime delegate.
• ⚠️ Deprecated onGetNimbusFeature by 122, please use ExperimentDelegate.onGetExperimentFeature instead.
• Added GeckoRuntimeSettings.Builder.extensionsProcessEnabled for setting whether extensions process is enabled. (bug 1843926)
• Added ExtensionProcessDelegate to allow GeckoView to notify disabling of the extension process spawning due to excessive crash/kill. (bug 1819737)
• Added enableExtensionProcessSpawning for enabling the extension process spawning
• Add WebExtensionController.AddonManagerDelegate.onInstallationFailed (bug 1848100.
• Add InstallException.extensionName which indicates the name of the extension that caused the exception.

v116

• Added GeckoSession.didPrintPageContent to included extra print status for a standard print and new GeckoPrintException.ERROR_NO_PRINT_DELEGATE
• Added PromptInstanceDelegate.onSelectIdentityCredentialProvider to allow the user to choose an Identity Credential provider (FedCM) to be used when authenticating. (bug 1836356)
• Changed [Gecko.CrashHandler] location to GeckoView.CrashHandler (bug 1550206)
• Added PromptInstanceDelegate.onSelectIdentityCredentialAccount to allow the user to choose an account on the Identity Credential Provider (FedCM) they previously chose to be used when authenticating. (bug 1836363)
• Added PromptInstanceDelegate.onShowPrivacyPolicyIdentityCredential to allow the user to indicate if agrees or not with the privacy policy of the Identity Credential provider. (bug 1836358)

v115

• Changed SessionPdfFileSaver.createResponse to response of saving PDF to accept two additional arguments: skipConfirmation and requestExternalApp.
• Added GeckoDisplay.NewSurfaceProvider interface, which allows Gecko to request a new rendering Surface from the application. (bug 1824083)
• Add onPrintWithStatus to retrieve additional printing status information.
• Added new GeckoPrintException errors of ERROR_NO_ACTIVITY_CONTEXT and ERROR_NO_ACTIVITY_CONTEXT_DELEGATE
• Added GeckoSession.ContentDelegate.onGetNimbusFeature
• Added textContent to ContentDelegate.ContextElement and a new constructor to ContentDelegate.ContextElement
• Changed SessionPdfFileSaver.createResponse to response of saving PDF to accept an url and return a [GeckoResult<WebResponse>].
• ⚠️ Deprecated GeckoSession.PdfSaveResult

v114

• Add SessionPdfFileSaver.createResponse to response of saving PDF.
• Added requestExternalApp and skipConfirmation with builder fields on a WebResponse to request that a downloaded file be opened in an external application or to skip a confirmation, respectively.
• ⚠️ Removed deprecated CookieBannerMode.COOKIE_BANNER_MODE_DETECT_ONLY

v113

• Add DisplayMdoe annotation to displayMode, getDisplayMode and setDisplayMode. (bug 1820567)
• Add UserAgentMode annotation to userAgentMode, getUserAgentMode and setUserAgentMode. (bug 1820567)
• Add ViewportMode annotation to viewportMode, getViewportMode and setViewportMode. (bug 1820567)
• Add WebExtensionController.AddonManagerDelegate (bug 1822763, bug 1826739)

v112

• Added GeckoSession.LOAD_FLAGS_BYPASS_LOAD_URI_DELEGATE, see (bug 1809269).
• Added GeckoSession.hasCookieBannerRuleForBrowsingContextTree to expose Gecko API nsICookieBannerService::hasRuleForBrowsingContextTree see (bug 1806740)
• Removed deprecated Autofill.Node.getDimensions (bug 1815830)

v111

• Removed deprecated SelectionActionDelegate.Selection.clientRect, BasicSelectionActionDelegate.mTempMatrix and BasicSelectionActionDelegate.mTempRect, (bug 1801615)
• Added GeckoSession.ContentDelegate.cookieBannerHandlingDetectOnlyMode see (bug 1810742)
• ⚠️ Deprecated CookieBannerMode.COOKIE_BANNER_MODE_DETECT_ONLY
• Added GeckoView.ActivityContextDelegate, setActivityContextDelegate, and getActivityContextDelegate to GeckoView
• Added GeckoSession.PrintDelegate, a PrintDocumentAdapter, getters and setters for the PrintDelegate, and [printPageContent] to print session content
• Added GeckoSession.PdfSaveResult, a SessionPdfFileSaver and isPdfJs, see (bug 1810761)

v110

• Added GeckoSession.ContentDelegate.onCookieBannerDetected and GeckoSession.ContentDelegate.onCookieBannerHandled
• Added CookieBannerMode.COOKIE_BANNER_MODE_DETECT_ONLY, for detecting cookie banners but not handle them, see (bug 1797581)
• Added StorageController.setCookieBannerModeAndPersistInPrivateBrowsingForDomain see (bug 1804747)
• Added Autofill.Node.getScreenRect for fission compatible.
• ⚠️ Deprecated Autofill.Node.getDimensions. (bug 1803733)
• Added ColorPrompt.predefinedValues to expose predefined values by datalist element in the color prompt. (bug 1805616)

v109

• Added SelectionActionDelegate.Selection.screenRect for fission compatible.
• ⚠️ Deprecated SelectionActionDelegate.Selection.clientRect, BasicSelectionActionDelegate.mTempMatrix and BasicSelectionActionDelegate.mTempRect. (bug 1785759)
• Added StorageController.setCookieBannerModeForDomain, StorageController.getCookieBannerModeForDomain and StorageController.removeCookieBannerModeForDomain see (bug 1797581)

v108

• Added ContentBlocking.CookieBannerMode; cookieBannerHandlingMode and cookieBannerHandlingModePrivateBrowsing to ContentBlocking.Settings.Builder; getCookieBannerMode, setCookieBannerMode, getCookieBannerModePrivateBrowsing and setCookieBannerModePrivateBrowsing to ContentBlocking.Settings (bug 1790724)
• Added GeckoSession.GeckoPrintException to improver error reporting while generating a PDF from website, (bug 1798402).
• Added GeckoSession.containsFormData that returns a GeckoResult<Boolean> for whether or not a session has form data, (bug 1777506).

v107

• Removed deprecated cookieLifetime
• Removed deprecated setPermission, see deprecation note in v90

v106

• Added SelectionActionDelegate.onShowClipboardPermissionRequest, SelectionActionDelegate.onDismissClipboardPermissionRequest, BasicSelectionActionDelegate.onShowClipboardPermissionRequest, BasicSelectionActionDelegate.onDismissCancelClipboardPermissionRequest and SelectionActionDelegate.ClipboardPermission to handle permission request for reading clipboard data by clipboard.readText. (bug 1776829)

v104

• Removed deprecated Autofill.Delegate onAutofill, Autofill.Node fillViewStructure, getFocused, getId, getValue, getVisible, Autofill.NodeData Autofill.Notify, Autofill.Session surfaceChanged. (bug 1781180)
• Removed deprecated GeckoDisplay.surfaceChanged functions [1] [2]
• Removed deprecated GeckoSession.autofill. (bug 1781180)
• Removed deprecated onLocationChange(2) (bug 1781180)

v103

• Added GeckoSession.saveAsPdf that returns a GeckoResult<InputStream> that contains a PDF of the current session’s page.
• Added missing @Deprecated tag for setPermission, see deprecation note in v90.
• ⚠️ Deprecated cookieLifetime, this feature is not available anymore.

v102

• Added DateTimePrompt.stepValue to export step attribute of input element. (bug 1499635)
• Deprecated onLocationChange(2), please use onLocationChange(3).
• Added GeckoSession.setPriorityHint function to set the session to either high priority or default.
• WebRequestError.ERROR_HTTPS_ONLY now has error category ERROR_CATEGORY_NETWORK rather than ERROR_CATEGORY_SECURITY.
• ⚠️ The Autofill.Delegate API now receives a AutofillNode object instead of the entire Node structure. The onAutofill delegate method is now split into several methods: onNodeAdd, onNodeBlur, onNodeFocus, onNodeRemove, onNodeUpdate, onSessionCancel, onSessionCommit, onSessionStart.
• Added PromptInstanceDelegate.onPromptUpdate to allow GeckoView to update current prompts. (bug 1758800)
• Deprecated GeckoSession.autofill, use Autofill.Session.autofill instead. (bug 1770010)
• Added WebRequestError.ERROR_BAD_HSTS_CERT error code to notify the app of a connection to a site that does not allow error overrides. (bug 1721220)

v101

• Added GeckoDisplay.surfaceChanged function taking new type GeckoDisplay.SurfaceInfo. This allows the caller to provide a SurfaceControl object, which must be set on SDK level 29 and above when rendering in to a SurfaceView. (bug 1762424)
• ⚠️ Deprecated old GeckoDisplay.surfaceChanged functions [1] [2].
• Add WebExtensionController.optionalPrompt to allow handling of optional permission requests from extensions.

v100

• ⚠️ Changed GeckoSession.isOpen to @UiThread.
• WebNotification now implements Parcelable to support persisting notifications and responding to them while the browser is not running.
• Removed deprecated GeckoRuntime.EXTRA_CRASH_FATAL
• Removed deprecated MediaSource.rawId

v99

• Removed deprecated GeckoRuntimeSettings.Builder.enterpiseRootsEnabled. (bug 1754244)

v98

• Add WebRequest.beConservative to allow critical infrastructure to avoid using bleeding-edge network features. (bug 1750231)

v97

• ⚠️ Deprecated MediaSource.rawId, which now provides the same string as id. (bug 1744346)
• Added EXTRA_CRASH_PROCESS_TYPE field to ACTION_CRASHED intents, and corresponding CRASHED_PROCESS_TYPE_* constants, indicating which type of process a crash occured in. (bug 1743454)
• ⚠️ Deprecated EXTRA_CRASH_FATAL. Use EXTRA_CRASH_PROCESS_TYPE instead. (bug 1743454)
• Added OrientationController to allow GeckoView to handle orientation locking. (bug 1697647)
• Added GeckoSession.goBack and GeckoSession.goForward with a userInteraction parameter. Updated the default goBack/goForward behaviour to also be considered as a user interaction. (bug 1644595)

v96

• Added onLoginFetch which allows apps to provide all saved logins to GeckoView. (bug 1733423)
• Added GeckoResult.finally_ to unconditionally run an action after the GeckoResult has been completed. (bug 1736433)
• Added ERROR_INVALID_DOMAIN to WebExtension.InstallException.ErrorCodes. (bug 1740634)
• Added Selection.pasteAsPlainText to paste HTML content as plain text. (bug 1740414)
• Removed deprecated Content Blocking APIs. (bug 1743706)

v95

• Added GeckoSession.ContentDelegate.onPointerIconChange() to notify the application of changing pointer icon. If the application wants to handle pointer icon, it should override this. (bug 1672609)
• Deprecated ContentBlockingController, use StorageController instead. A PERMISSION_TRACKING permission is now present in onLocationChange for every page load, which can be used to set tracking protection exceptions. (bug 1714945)
• Added setPrivateBrowsingPermanentPermission, which allows apps to set permanent permissions in private browsing (e.g. to set permanent tracking protection permissions in private browsing). (bug 1714945)
• Deprecated GeckoRuntimeSettings.Builder.enterpiseRootsEnabled due to typo. (bug 1708815)
• Added GeckoRuntimeSettings.Builder.enterpriseRootsEnabled to replace GeckoRuntimeSettings.Builder.enterpiseRootsEnabled. (bug 1708815)
• Added GeckoSession.ContentDelegate.onPreviewImage to notify the application of a preview image URL. (bug 1732219)

v94

• Extended Autocomplete API to support credit card saving. (bug 1703976)

v93

• Removed deprecated Autocomplete.LoginStorageDelegate. (bug 1725469)
• Removed deprecated GeckoRuntime.getProfileDir. (bug 1725469)
• Added PromptInstanceDelegate to allow GeckoView to dismiss stale prompts. (bug 1710668)
• Added WebRequestError.ERROR_HTTPS_ONLY error code to allow GeckoView display custom HTTPS-only error pages and bypass them. (bug 1697866)

v92

• Added PermissionDelegate.PERMISSION_STORAGE_ACCESS to control the allowing of third-party frames to access first-party cookies and storage. (bug 1543720)
• Added ContentDelegate.onShowDynamicToolbar to notify the app that it must fully-expand its dynamic toolbar (bug 1690296)
• Removed deprecated GeckoResult.ALLOW and GeckoResult.DENY. Use GeckoResult.allow and GeckoResult.deny instead.

v91

• Extended Autocomplete API to support addresses. (bug 1699794).
• Added clearDataFromBaseDomain to StorageController for clearing site data by base domain. This includes data of associated subdomains and data partitioned via State Partitioning.
• Removed deprecated MediaElement API.

v90

• Added WebNotification.silent and WebNotification.vibrate support. See also Web/API/Notification/silent and Web/API/Notification/vibrate. (bug 1696145)
• ⚠️ Deprecated GeckoRuntime.getProfileDir, the API is being kept for compatibility but it always returns null.
• Added forceEnableAccessibility runtime setting to enable accessibility during testing. (bug 1701269)
• Removed deprecated GeckoView.onTouchEventForResult. (bug 1706403)
• ⚠️ Updated onContentPermissionRequest to use ContentPermission; added setPermission to StorageController for modifying existing permissions, and allowed Gecko to handle persisting permissions.
• ⚠️ Added a deprecation schedule to most existing content blocking exception functionality; other than addException, content blocking exceptions should be treated as content permissions going forward.

v89

• Added ContentPermission, which is used to report what permissions content is loaded with in onLocationChange.
• Added StorageController.getPermissions and StorageController.getAllPermissions, allowing inspection of what permissions have been set for a given URI and for all URIs.
• ⚠️ Deprecated NavigationDelegate.onLocationChange, to be removed in v92. The new onLocationChange callback simply adds permissions information, migration of existing functionality should only require updating the function signature.
• Added GeckoRuntimeSettings.setEnterpriseRootsEnabled which allows GeckoView to add third party certificate roots from the Android OS CA store. (bug 1678191).
• ⚠️ GeckoSession.load now throws IllegalArgumentException if the session has no GeckoSession.NavigationDelegate and the request’s data URI is too long. If a GeckoSession does have a GeckoSession.NavigationDelegate and GeckoSession.load is called with a top-level data URI that is too long, NavigationDelgate.onLoadError will be called with a WebRequestError containing error code WebRequestError.ERROR_DATA_URI_TOO_LONG. (bug 1668952)
• Extended Autocomplete API to support credit cards. (bug 1691819).
• ⚠️ Deprecated Autocomplete.LoginStorageDelegate with the intention of removing it in GeckoView v93. Please use Autocomplete.StorageDelegate instead. (bug 1691819).
• Added ALLOWED_TRACKING_CONTENT to content blocking API to indicate when unsafe content is allowed by a shim. (bug 1661330)
• ⚠️ Added setCookieBehaviorPrivateMode to control cookie behavior for private browsing mode independently of normal browsing mode. To maintain current behavior, set this to the same value as setCookieBehavior is set to.

v88

• Added WebExtension.Download#update that can be used to implement the WebExtension downloads API. This method is used to communicate updates in the download status to the Web Extension
• Added PanZoomController.onTouchEventForDetailResult and GeckoView.onTouchEventForDetailResult to tell information that the website doesn’t expect browser apps to react the event, also and deprecated PanZoomController.onTouchEventForResult and GeckoView.onTouchEventForResult. With these new methods browser apps can differentiate cases where the browser can do something the browser’s specific behavior in response to the event (e.g. pull-to-refresh) and cases where the browser should not react to the event because the event was consumed in the web site (e.g. in canvas like web apps). (bug 1678505).
• ⚠️ Deprecate the MediaElement API to be removed in v91. Please use MediaSession for media events and control. (bug 1693584).
• ⚠️ Deprecate GeckoResult.ALLOW and GeckoResult.DENY in favor of GeckoResult.allow and GeckoResult.deny. (bug 1697270).
• ⚠️ Update SessionState to handle null states/strings more gracefully. (bug 1685486).

v87

• ⚠️ Added WebExtension.DownloadInitData class that can be used to implement the WebExtension downloads API. This class represents initial state of a download.
• Added WebExtension.Download.Info interface that can be used to implement the WebExtension downloads API. This interface allows communicating download’s state to Web Extension.
• Image#getBitmap now throws ImageProcessingException if the image cannot be processed. (bug 1689745)
• Added support for HTTPS-only mode to GeckoRuntimeSettings via setAllowInsecureConnections.
• Removed JSONException throws from SessionState.fromString, fixed annotations, and clarified null-handling a bit.

v86

• Removed deprecated ContentDelegate#onExternalResponse(GeckoSession, WebResponseInfo). Use ContentDelegate#onExternalResponse(GeckoSession, WebResponse) instead. (bug 1665157)
• Added WebExtension.DownloadDelegate and that can be used to implement the WebExtension downloads API. (bug 1656336)
• Added WebRequest.Builder#body(@Nullable String) which converts a string to direct byte buffer.
• Removed deprecated REPLACED_UNSAFE_CONTENT. (bug 1667471)
• Removed deprecated GeckoSession#loadUri variants in favor of GeckoSession#load. See docs for Loader. (bug 1667471)
• Added GeckoResult#map to synchronously map a GeckoResult value.
• Added PanZoomController#INPUT_RESULT_IGNORED. (bug 1687430)

v85

• Added WebExtension.BrowsingDataDelegate that can be used to implement the WebExtension browsingData API.

v84

• ⚠️ Removed deprecated GeckoRuntimeSettings.Builder.useMultiprocess and [GeckoRuntimeSettings.getUseMultiprocess]. Single-process GeckoView is no longer supported. (bug 1650118)
• Deprecated members now have an additional @DeprecationSchedule annotation which includes the version that we expect to remove the member and an id that can be used to group annotation notices in tooling. (bug 1671460)
• ⚠️ Removed deprecated ContentBlockingController.ExceptionList and ContentBlockingController.restoreExceptionList. (bug 1674500)

v83

• Added WebExtension.MetaData.temporary which exposes whether an extension has been installed temporarily, e.g. when using web-ext. (bug 1624410)
• ⚠️ Removing unsupported MediaSession.Delegate.onPictureInPicture for now. Also, MediaSession.Delegate.onMetadata is no longer dispatched for plain media elements. (bug 1658937)
• Replaced android.util.ArrayMap with java.util.TreeMap in WebMessage to enable case-insensitive handling of the HTTP headers. (bug 1666013)
• Added ContentBlocking.SafeBrowsingProvider to configure Safe Browsing providers. (bug 1660241)
• Added GeckoRuntime.ActivityDelegate which allows applications to handle starting external Activities on behalf of GeckoView. Currently this is used to integrate FIDO support for WebAuthn.
• Added GeckoWebExecutor#FETCH_FLAG_PRIVATE. This new flag allows for private browsing downloads using WebExecutor. (bug 1665426)
• ⚠️ Deprecated GeckoSession#loadUri variants in favor of GeckoSession#load. See docs for Loader. (bug 1667471)
• Added Loader#headerFilter to override the default header filtering behavior. (bug 1667471)

v82

• ⚠️ WebNotification.source is now @Nullable to account for WebExtension notifications which don’t have a source field.
• ⚠️ Deprecated ContentDelegate#onExternalResponse(GeckoSession, WebResponseInfo) with the intention of removing them in GeckoView v85. (bug 1530022)
• Added ContentDelegate#onExternalResponse(GeckoSession, WebResponse) to eliminate the need to make a second request for downloads and ensure more efficient and reliable downloads in a single request. The second parameter is now a WebResponse (bug 1530022)
• Added Image support for size-dependent bitmap retrieval from image resources. (bug 1658456)
• ⚠️ Use Image for MediaSession artwork and WebExtension icon support. (bug 1662508)
• Added RepostConfirmPrompt to prompt the user for cofirmation before resending POST requests. (bug 1659073)
• Removed Parcelable support in GeckoSession. Use ProgressDelegate#onSessionStateChange and ProgressDelegate#restoreState instead. (bug 1650108)
• ⚠️ Use AndroidX instead of the Android support library. For the public API this only changes the thread and nullable annotation types.
• Added REPLACED_TRACKING_CONTENT to content blocking API to indicate when unsafe content is shimmed. (bug 1663756)

v81

• Added cookiePurging to ContentBlocking.Settings.Builder and getCookiePurging and setCookiePurging to ContentBlocking.Settings.
• Added GeckoSession.ContentDelegate.onPaintStatusReset() callback which notifies when valid content is no longer being rendered.
• Made GeckoSession.ContentDelegate.onFirstContentfulPaint() additionally be called for the first contentful paint following a onPaintStatusReset() event, rather than just the first contentful paint of the session.
• Removed deprecated GeckoRuntime.registerWebExtension. Use WebExtensionController.install instead. ⚠️ - Changed GeckoView.onTouchEventForResult to return a GeckoResult, as it now makes a round-trip to Gecko. The result will be more accurate now, since how content treats the event is now considered.
• Added MediaSession API for session-based media events and control.

v80

• Removed GeckoSession.hashCode and GeckoSession.equals overrides in favor of the default implementations. (bug 1647883)
• Added strictSocialTrackingProtection to ContentBlocking.Settings.Builder and getStrictSocialTrackingProtection to ContentBlocking.Settings.

v79

• Added runtime.openOptionsPage support. For options_ui.open_in_new_tab == false, TabDelegate.onOpenOptionsPage is called. (bug 1618058)
• Added WebNotification.source, which is the URL of the page or Service Worker that created the notification.
• Removed deprecated WebExtensionController.setTabDelegate and WebExtensionController.getTabDelegate APIs (bug 1618987).
• ⚠️ RuntimeTelemetry#getSnapshots is removed after deprecation. Use Glean to handle Gecko telemetry. (bug 1644447)
• Added ensureBuiltIn that ensures that a built-in extension is installed without re-installing. (bug 1635564)
• Added ProfilerController, accessible via GeckoRuntime.getProfilerController to allow adding gecko profiler markers. (bug 1624993)
• ⚠️ Deprecated Parcelable support in GeckoSession with the intention of removing in GeckoView v82. (bug 1649529)
• ⚠️ Deprecated GeckoRuntimeSettings.Builder.useMultiprocess and GeckoRuntimeSettings.getUseMultiprocess with the intention of removing them in GeckoView v82. (bug 1649530)

v78

• Added WebExtensionController.installBuiltIn that allows installing an extension that is bundled with the APK. This method is meant as a replacement for GeckoRuntime.registerWebExtension, ⚠️ which is now deprecated and will be removed in GeckoView 81.
• Added CookieBehavior.ACCEPT_FIRST_PARTY_AND_ISOLATE_OTHERS to allow enabling dynamic first party isolation; this will block tracking cookies and isolate all other third party cookies by keying them based on the first party from which they are accessed.
• Added cookieStoreId field to WebExtension.CreateTabDetails. This adds the optional ability to create a tab with a given cookie store ID for its contextual identity. (bug 1622500)
• Added NavigationDelegate.onSubframeLoadRequest to allow intercepting non-top-level navigations.
• Added BeforeUnloadPrompt to respond to prompts from onbeforeunload.
• ⚠️ Refactored LoginStorage to the Autocomplete API to support login form autocomplete delegation. Refactored LoginStorage.Delegate to Autocomplete.LoginStorageDelegate. Refactored GeckoSession.PromptDelegate.onLoginStoragePrompt to GeckoSession.PromptDelegate.onLoginSave. Added GeckoSession.PromptDelegate.onLoginSelect. (bug 1618058)
• Added GeckoRuntimeSettings#setLoginAutofillEnabled to control whether login forms should be automatically filled in suitable situations.

v77

• Added GeckoRuntime.appendAppNotesToCrashReport For adding app notes to the crash report. (bug 1626979)
• ⚠️ Remove the DynamicToolbarAnimator API along with accesors on GeckoView and GeckoSession. (bug 1627716)

v76

• Added GeckoSession.PermissionDelegate.PERMISSION_MEDIA_KEY_SYSTEM_ACCESS to control EME media key access.
• RuntimeTelemetry#getSnapshots is deprecated and will be removed in 79. Use Glean to handle Gecko telemetry. (bug 1620395)
• Added LoadRequest.isDirectNavigation to know when calls to onLoadRequest originate from a direct navigation made by the app itself. (bug 1624675)

v75

• ⚠️ Remove GeckoRuntimeSettings.Builder#useContentProcessHint. The content process is now preloaded by default if GeckoRuntimeSettings.Builder#useMultiprocess is enabled.
• ⚠️ Move GeckoSessionSettings.Builder#useMultiprocess to GeckoRuntimeSettings.Builder#useMultiprocess. Multiprocess state is no longer determined per session.
• Added DebuggerDelegate#onExtensionListUpdated to notify that a temporary extension has been installed by the debugger. (bug 1614295)
• ⚠️ Removed GeckoRuntimeSettings.setAutoplayDefault, use GeckoSession.PermissionDelegate#PERMISSION_AUTOPLAY_AUDIBLE and GeckoSession.PermissionDelegate#PERMISSION_AUTOPLAY_INAUDIBLE to control autoplay. (bug 1614894)
• Added GeckoSession.reload(int flags) That takes a load flag parameter.
• ⚠️ Moved ActionDelegate and MessageDelegate to SessionController. (bug 1616625)
• Added SessionTabDelegate to SessionController and TabDelegate to WebExtension which receive respectively calls for the session and the runtime. TabDelegate is also now per-WebExtension object instead of being global. The existing global TabDelegate is now deprecated and will be removed in GeckoView 77. (bug 1616625)
• Added SessionTabDelegate#onUpdateTab which is called whenever an extension calls tabs.update on the corresponding GeckoSession. TabDelegate#onCreateTab now takes a CreateTabDetails object which contains additional information about the newly created tab (including the url which used to be passed in directly). (bug 1616625)
• Added GeckoRuntimeSettings.setWebManifestEnabled, GeckoRuntimeSettings.webManifest, and GeckoRuntimeSettings.getWebManifestEnabled (bug 1614894), to enable or check Web Manifest support.
• Added GeckoDisplay.safeAreaInsetsChanged to notify the content of safe area insets. (bug 1503656)
• Added GeckoResult#cancel(), GeckoResult#setCancellationDelegate(), and GeckoResult.CancellationDelegate. This adds the optional ability to cancel an operation behind a pending GeckoResult.
• Added baseUrl to WebExtension.MetaData to expose the base URL for all WebExtension pages for a given extension. (bug 1560048)
• Added allowedInPrivateBrowsing and setAllowedInPrivateBrowsing to control whether an extension can run in private browsing or not. Extensions installed with registerWebExtension will always be allowed to run in private browsing. (bug 1599139)

v74

• Added WebExtensionController.enable and disable to enable and disable extensions. (bug 1599585)
• ⚠️ Added GeckoSession.ProgressDelegate.SecurityInformation#certificate, which is the full server certificate in use, if any. The other certificate-related fields were removed. (bug 1508730)
• Added WebResponse#isSecure, which indicates whether or not the response was delivered over a secure connection. (bug 1508730)
• Added WebResponse#certificate, which is the server certificate used for the response, if any. (bug 1508730)
• Added WebRequestError#certificate, which is the server certificate used in the failed request, if any. (bug 1508730)
• ⚠️ Updated ContentBlockingController to use new representation for content blocking exceptions and to add better support for removing exceptions. This deprecates ExceptionList and restoreExceptionList with the intent to remove them in 76. (bug 1587552)
• Added GeckoSession.ContentDelegate.onMetaViewportFitChange. This exposes viewport-fit value that is CSS Round Display Level 1. (bug 1574307)
• Extended LoginStorage.Delegate with onLoginUsed to report when existing login entries are used for autofill. (bug 1610353)
• Added WebExtensionController#setTabActive, which is used to notify extensions about tab changes (bug 1597793)
• Added WebExtension.metaData.optionsUrl and WebExtension.metaData.openOptionsPageInTab, which is the addon metadata necessary to show their option pages. (bug 1598792)
• Added WebExtensionController.update to update extensions. (bug 1599581)
• ⚠️ Replaced subscription argument in WebPushDelegate.onSubscriptionChanged from a WebPushSubscription to the String scope.

v73

• Added WebExtensionController.install and uninstall to manage installed extensions
• ⚠️ Renamed ScreenLength.VIEWPORT_WIDTH, ScreenLength.VIEWPORT_HEIGHT, ScreenLength.fromViewportWidth and ScreenLength.fromViewportHeight to ScreenLength.VISUAL_VIEWPORT_WIDTH, ScreenLength.VISUAL_VIEWPORT_HEIGHT, ScreenLength.fromVisualViewportWidth and ScreenLength.fromVisualViewportHeight respectively.
• Added the LoginStorage API. Apps may handle login fetch requests now by attaching a LoginStorage.Delegate via GeckoRuntime#setLoginStorageDelegate (bug 1602881)
• ⚠️ WebExtension’s constructor now requires a WebExtensionController instance.
• Added GeckoResult.allOf for consuming a list of results.
• Added WebExtensionController.list to list all installed extensions.
• Added GeckoSession.PermissionDelegate#PERMISSION_AUTOPLAY_AUDIBLE and GeckoSession.PermissionDelegate#PERMISSION_AUTOPLAY_INAUDIBLE. These control autoplay permissions for audible and inaudible videos. (bug 1577596)
• Added LoginStorage.Delegate.onLoginSave for login storage save requests and GeckoSession.PromptDelegate.onLoginStoragePrompt for login storage prompts. (bug 1599873)

v72

• Added GeckoSession.NavigationDelegate.LoadRequest#hasUserGesture. This indicates if a load was requested while a user gesture was active (e.g., a tap). (bug 1555337)
• ⚠️ Refactored AutofillElement and AutofillSupport into the Autofill API. (bug 1591462)
• Make read() in the InputStream returned from WebResponse#body timeout according to WebResponse#setReadTimeoutMillis(). The default timeout value is reflected in WebResponse#DEFAULT_READ_TIMEOUT_MS, currently 30s. (bug 1595145)
• ⚠️ Removed GeckoResponse (bug 1581161)
• ⚠️ Removed actions and response arguments from SelectionActionDelegate.onShowActionRequest and BasicSelectionActionDelegate.onShowActionRequest (bug 1581161)
• Added text selection action methods to SelectionActionDelegate.Selection (bug 1581161)
• Added BasicSelectionActionDelegate.getSelection (bug 1581161)
• Changed BasicSelectionActionDelegate.clearSelection to public. (bug 1581161)
• Added Autofill commit support. (bug 1577005)
• Added GeckoView.setViewBackend to set whether GeckoView should be backed by a TextureView or a SurfaceView. (bug 1530402)
• Added support for Browser and Page Action from the WebExtension API. See WebExtension.Action. (bug 1530402)
• ⚠️ Split ContentBlockingController.Event.LOADED_TRACKING_CONTENT into ContentBlockingController.Event.LOADED_LEVEL_1_TRACKING_CONTENT and ContentBlockingController.Event.LOADED_LEVEL_2_TRACKING_CONTENT.
• Replaced subscription argument in WebPushDelegate.onPushEvent from a WebPushSubscription to the String scope.
• ⚠️ Renamed WebExtension.ActionIcon to Icon.
• Added GeckoWebExecutor#FETCH_FLAGS_STREAM_FAILURE_TEST, which is a new flag used to immediately fail when reading a WebResponse body. (bug 1594905)
• Changed CrashReporter#sendCrashReport(Context, File, JSONObject) to accept a JSON object instead of a Map. Said object also includes the application name that was previously passed as the fourth argument to the method, which was thus removed.
• Added WebXR device access permission support, PERMISSION_PERSISTENT_XR. (bug 1599927)

v71

• Added a content blocking flag for blocked social cookies to ContentBlocking. (bug 1584479)
• Added onBooleanScalar, onLongScalar, onStringScalar to RuntimeTelemetry.Delegate to support scalars in streaming telemetry. ⚠️ As part of this change, onTelemetryReceived has been renamed to onHistogram, and Metric now takes a type parameter. (bug 1576730)
• Added overloads of GeckoSession.loadUri that accept a map of additional HTTP request headers. (bug 1567549)
• Added support for exposing the content blocking log in ContentBlockingController. (bug 1580201)
• ⚠️ Added nativeApp to WebExtension.MessageDelegate.onMessage which exposes the native application identifier that was used to send the message. (bug 1546445)
• Added GeckoRuntime.ServiceWorkerDelegate set via setServiceWorkerDelegate to support ServiceWorkerClients.openWindow (bug 1511033)
• Added GeckoRuntimeSettings.Builder#aboutConfigEnabled to control whether or not about:config should be available. (bug 1540065)
• Added GeckoSession.ContentDelegate.onFirstContentfulPaint (bug 1578947)
• Added setEnhancedTrackingProtectionLevel to [ContentBlocking.Settings][71.14]. (bug 1580854)
• ⚠️ Added GeckoView.onTouchEventForResult and modified PanZoomController.onTouchEvent to return how the touch event was handled. This allows apps to know if an event is handled by touch event listeners in web content. The methods in PanZoomController now return int instead of boolean.
• Added GeckoSession.purgeHistory allowing apps to clear a session’s history. (bug 1583265)
• Added GeckoRuntimeSettings.Builder#forceUserScalableEnabled to control whether or not to force user scalable zooming. (bug 1540615)
• ⚠️ Moved Autofill related methods from SessionTextInput and GeckoSession.TextInputDelegate into GeckoSession and AutofillDelegate.
• Added GeckoSession.getAutofillElements(), which is a new method for getting an autofill virtual structure without using ViewStructure. It relies on a new class, AutofillElement, for representing the virtual tree.
• Added GeckoView.setAutofillEnabled for controlling whether or not the GeckoView instance participates in Android autofill. When enabled, this connects an AutofillDelegate to the session it holds.
• Changed AutofillElement.children interface to Collection to provide an efficient way to pre-allocate memory when filling ViewStructure.
• Added GeckoSession.PromptDelegate.onSharePrompt to support the WebShare API. (bug 1402369)
• Added GeckoDisplay.screenshot allowing apps finer grain control over screenshots. (bug 1577192)
• Added GeckoView.setDynamicToolbarMaxHeight to make ICB size static, ICB doesn’t include the dynamic toolbar region. (bug 1586144)

v70

• Added API for session context assignment GeckoSessionSettings.Builder.contextId and deletion of data related to a session context StorageController.clearDataForSessionContext. (bug 1501108)
• Removed setSession(session, runtime) from GeckoView. With this change, GeckoView will no longer manage opening/closing of the GeckoSession and instead leave that up to the app. It’s also now allowed to call setSession with a closed GeckoSession. (bug 1510314)
• Added an overload of GeckoSession.loadUri() that accepts a referring GeckoSession. This should be used when the URI we’re loading originates from another page. A common example of this would be long pressing a link and then opening that in a new GeckoSession. (bug 1561079)
• Added capture parameter to onFilePrompt and corresponding CAPTURE_TYPE_* constants. (bug 1553603)
• Removed the obsolete success parameter from CrashReporter#sendCrashReport(Context, File, File, String) and CrashReporter#sendCrashReport(Context, File, Map, String). (bug 1570789)
• Add GeckoSession.LOAD_FLAGS_REPLACE_HISTORY. (bug 1571088)
• Complete rewrite of PromptDelegate. (bug 1499394)
• Added RuntimeTelemetry.Delegate that receives streaming telemetry data from GeckoView. (bug 1566367)
• Updated ContentBlocking to better report blocked and allowed ETP events. (bug 1567268)
• Added API for controlling Gecko logging GeckoRuntimeSettings.debugLogging (bug 1573304)
• Added WebNotification and WebNotificationDelegate for handling Web Notifications. (bug 1533057)
• Added Social Tracking Protection support to ContentBlocking. (bug 1568295)
• Added WebExtensionController and WebExtensionController.TabDelegate to handle browser.tabs.create calls by WebExtensions. (bug 1539144)
• Added onCloseTab to WebExtensionController.TabDelegate to handle browser.tabs.remove calls by WebExtensions. (bug 1565782)
• Added onSlowScript to ContentDelegate which allows handling of slow and hung scripts. (bug 1621094)
• Added support for Web Push via WebPushController, WebPushDelegate, and WebPushSubscription.
• Added ContentBlockingController, accessible via GeckoRuntime.getContentBlockingController to allow modification and inspection of a content blocking exception list.

v69

• Modified behavior of setAutomaticFontSizeAdjustment so that it no longer has any effect on setFontInflationEnabled
• Add GeckoSession.LOAD_FLAGS_FORCE_ALLOW_DATA_URI
• Added GeckoResult.accept for consuming a result without transforming it.
• GeckoSession.setMessageDelegate callers must now specify the WebExtension that the MessageDelegate will receive messages from.
• Created onKill to ContentDelegate to differentiate from crashes.

v68

• Added GeckoRuntime#configurationChanged to notify the device configuration has changed.
• Added onSessionStateChange to ProgressDelegate and removed saveState.
• Added ContentBlocking#AT_CRYPTOMINING for cryptocurrency miner blocking.
• Added ContentBlocking#AT_DEFAULT, ContentBlocking#AT_STRICT, ContentBlocking#CB_DEFAULT and ContentBlocking#CB_STRICT for clearer app default selections.
• Added GeckoSession.SessionState.fromString. This can be used to deserialize a GeckoSession.SessionState instance previously serialized to a String via GeckoSession.SessionState.toString.
• Added GeckoRuntimeSettings#setPreferredColorScheme to override the default color theme for web content (“light” or “dark”).
• Added @NonNull or @Nullable to all fields.
• RuntimeTelemetry#getSnapshots returns a JSONObject now.
• Removed all org.mozilla.gecko references in the API.
• Added ContentBlocking#AT_FINGERPRINTING to block fingerprinting trackers.
• Added HistoryItem and HistoryList interfaces and onHistoryStateChange to HistoryDelegate and added gotoHistoryIndex to GeckoSession.
• GeckoView will not create a GeckoSession anymore when attached to a window without a session.
• Added GeckoRuntimeSettings.Builder#configFilePath to set a path to a configuration file from which GeckoView will read configuration options such as Gecko process arguments, environment variables, and preferences.
• Added unregisterWebExtension to unregister a web extension.
• Added messaging support for WebExtension. setMessageDelegate allows embedders to listen to messages coming from a WebExtension. Port allows bidirectional communication between the embedder and the WebExtension.
• Expose the following prefs in GeckoRuntimeSettings: setAutoZoomEnabled, setDoubleTapZoomingEnabled, setGlMsaaLevel.
• Added new constant for requesting external storage Android permissions, PERMISSION_PERSISTENT_STORAGE
• Added setVerticalClipping to GeckoDisplay and GeckoView to tell Gecko how much of its vertical space is clipped.
• Added StorageController API for clearing data.
• Added onRecordingStatusChanged to MediaDelegate to handle events related to the status of recording devices.
• Removed redundant constants in MediaSource

v67

• Added setAutomaticFontSizeAdjustment to GeckoRuntimeSettings for automatically adjusting font size settings depending on the OS-level font size setting.
• Added setFontSizeFactor to GeckoRuntimeSettings for setting a font size scaling factor, and for enabling font inflation for non-mobile-friendly pages.
• Updated video autoplay API to reflect changes in Gecko. Instead of being a per-video permission in the PermissionDelegate, it is a runtime setting that either allows or blocks autoplay videos.
• Change ContentBlocking.AT_AD and ContentBlocking.SB_ALL values to mirror the actual constants they encompass.
• Added nested ContentBlocking runtime settings.
• Added RuntimeSettings base class to support nested settings.
• Added baseUri to ContentDelegate.ContextElement and changed linkUri to absolute form.
• Added scrollBy and scrollTo to PanZoomController.
• Added GeckoSession.getDefaultUserAgent to expose the build-time default user agent synchronously.
• Changed WebResponse.body from a ByteBuffer to an InputStream. Apps that want access to the entire response body will now need to read the stream themselves.
• Added GeckoWebExecutor.FETCH_FLAGS_NO_REDIRECTS, which will cause GeckoWebExecutor.fetch() to not automatically follow HTTP redirects (e.g., 302).
• Moved GeckoVRManager into the org.mozilla.geckoview package.
• Initial WebExtension support. GeckoRuntime#registerWebExtension allows embedders to register a local web extension.
• Added API to GeckoView to take screenshot of the visible page. Calling capturePixels returns a GeckoResult that completes to a Bitmap of the current Surface contents, or an IllegalStateException if the GeckoSession is not ready to render content.
• Added API to capture a screenshot to GeckoDisplay. capturePixels returns a GeckoResult that completes to a Bitmap of the current Surface contents, or an IllegalStateException if the GeckoSession is not ready to render content.
• Add missing @Nullable annotation to return value for GeckoSession.PromptDelegate.ChoiceCallback.onPopupResult()
• Added default implementations for all non-functional interfaces.
• Added ContentDelegate.onWebAppManifest, which will deliver the contents of a parsed and validated Web App Manifest on pages that contain one.

v66

• Removed redundant field trackingMode from SecurityInformation. Use TrackingProtectionDelegate.onTrackerBlocked for notification of blocked elements during page load.
• Added @NonNull or @Nullable to all APIs.
• Added methods for each setting in GeckoSessionSettings
• Added GeckoSessionSettings for enabling desktop viewport. Desktop viewport is no longer set by USER_AGENT_MODE_DESKTOP and must be set separately.
• Added @UiThread to GeckoSession.releaseSession and GeckoSession.setSession

v65

• Added experimental ad-blocking category to GeckoSession.TrackingProtectionDelegate.
• Moved CompositorController, DynamicToolbarAnimator, OverscrollEdgeEffect, PanZoomController from org.mozilla.gecko.gfx to org.mozilla.geckoview
• Added @UiThread, @AnyThread annotations to all APIs
• Changed GeckoRuntimeSettings#getLocale to getLocales and related APIs.
• Merged org.mozilla.gecko.gfx.LayerSession into GeckoSession
• Added GeckoSession.MediaDelegate and MediaElement. This allow monitoring and control of web media elements (play, pause, seek, etc).
• Removed unused access parameter from GeckoSession.PermissionDelegate#onContentPermissionRequest
• Added WebMessage, WebRequest, WebResponse, and GeckoWebExecutor. This exposes Gecko networking to apps. It includes speculative connections, name resolution, and a Fetch-like HTTP API.
• Added GeckoSession.HistoryDelegate. This allows apps to implement their own history storage system and provide visited link status.
• Added ContentDelegate#onFirstComposite to get first composite callback after a compositor start.
• Changed LoadRequest.isUserTriggered to isRedirect.
• Added GeckoSession.LOAD_FLAGS_BYPASS_CLASSIFIER to bypass the URI classifier.
• Added a protected empty constructor to all field-only classes so that apps can mock these classes in tests.
• Added ContentDelegate.ContextElement to extend the information passed to ContentDelegate#onContextMenu. Extended information includes the element’s title and alt attributes.
• Changed ContentDelegate.ContextElement TYPE_ constants to public access.
• Changed ContentDelegate.ContextElement, GeckoSession.FinderResult to non-final class.
• Update CrashReporter#sendCrashReport to return the crash ID as a GeckoResult<String>.