BB 42027: Base Browser migration procedures. (1d1dd7d5) · Commits · The Tor Project / Applications / Mullvad Browser

browser/components/BrowserGlue.sys.mjs

+1 −0

Original line number	Diff line number	Diff line
		@@ -390,6 +390,7 @@ BrowserGlue.prototype = {

		// handle any UI migration
		this._migrateUI();
		lazy.ProfileDataUpgrader.upgradeBB(this._isNewProfile);

		if (!Services.prefs.prefHasUserValue(PREF_PDFJS_ISDEFAULT_CACHE_STATE)) {
		lazy.PdfJs.checkIsDefault(this._isNewProfile);

browser/components/ProfileDataUpgrader.sys.mjs

+115 −0

Original line number	Diff line number	Diff line
		@@ -956,4 +956,119 @@ export let ProfileDataUpgrader = {
		// Update the migration version.
		Services.prefs.setIntPref("browser.migration.version", newVersion);
		},

		upgradeBB(isNewProfile) {
		// Version 1: 13.0a3. Reset layout.css.prefers-color-scheme.content-override
		// for tor-browser#41739.
		// Version 2: 14.0a5: Reset the privacy tracking headers preferences since
		// the UI is hidden. tor-browser#42777.
		// Also, do not set
		// dom.security.https_only_mode_send_http_background_request in
		// the security level anymore (tor-browser#42149).
		// Also, reset security.xfocsp.errorReporting.automatic since we
		// hid its neterror checkbox. tor-browser#42653.
		// Version 3: 14.0a7: Reset general.smoothScroll. tor-browser#42070.
		// Version 4: 15.0a2: Drop ML components. tor-browser#44045.
		// Version 5: 15.0a3: Disable LaterRun using prefs. tor-browser#42630.
		// Version 6: 15.0a4: Reset browser colors. tor-browser#43850.
		const MIGRATION_VERSION = 6;
		const MIGRATION_PREF = "basebrowser.migration.version";

		if (isNewProfile) {
		// Do not migrate fresh profiles
		Services.prefs.setIntPref(MIGRATION_PREF, MIGRATION_VERSION);
		return;
		} else if (isNewProfile === undefined) {
		// If this happens, check if upstream updated their function and do not
		// set this member anymore!
		console.error("upgradeBB: isNewProfile is undefined.");
		}

		const currentVersion = Services.prefs.getIntPref(MIGRATION_PREF, 0);
		if (currentVersion < 1) {
		Services.prefs.clearUserPref(
		"layout.css.prefers-color-scheme.content-override"
		);
		}
		if (currentVersion < 2) {
		for (const prefName of [
		"privacy.globalprivacycontrol.enabled",
		"privacy.donottrackheader.enabled",
		// Telemetry preference for if the user changed the value.
		"privacy.globalprivacycontrol.was_ever_enabled",
		// The next two preferences have no corresponding UI, but are related.
		"privacy.globalprivacycontrol.functionality.enabled",
		"privacy.globalprivacycontrol.pbmode.enabled",
		"dom.security.https_only_mode_send_http_background_request",
		"security.xfocsp.errorReporting.automatic",
		]) {
		Services.prefs.clearUserPref(prefName);
		}
		}
		if (currentVersion < 3) {
		Services.prefs.clearUserPref("general.smoothScroll");
		}
		if (currentVersion < 4) {
		for (const prefName of [
		"browser.translations.enable",
		"browser.ml.enable",
		"browser.ml.chat.enabled",
		"browser.ml.linkPreview.enabled",
		"browser.tabs.groups.smart.enabled",
		"browser.tabs.groups.smart.userEnabled",
		"extensions.ml.enabled",
		"pdfjs.enableAltText",
		"pdfjs.enableAltTextForEnglish",
		"pdfjs.enableGuessAltText",
		"pdfjs.enableAltTextModelDownload",
		"browser.urlbar.quicksuggest.mlEnabled",
		"places.semanticHistory.featureGate",
		]) {
		// Preferences are locked. Do not want user values to linger in the
		// user's profile and become active if these preferences become unlocked
		// in the future.
		Services.prefs.clearUserPref(prefName);
		}
		}
		if (currentVersion < 5) {
		for (const prefName of [
		"browser.laterrun.bookkeeping.sessionCount",
		"browser.laterrun.bookkeeping.profileCreationTime",
		"browser.laterrun.bookkeeping.updateAppliedTime",
		]) {
		Services.prefs.clearUserPref(prefName);
		}
		}
		if (currentVersion < 6) {
		// Clear the related preference that is no longer read by upstream's code.
		Services.prefs.clearUserPref("browser.display.use_system_colors");
		if (Services.prefs.getBoolPref("privacy.resistFingerprinting", true)) {
		for (const prefName of [
		// User has not switched off resist fingerprinting. We want to reset
		// any "0" (automatic, use system colours) and "2" (always use browser
		// colours) values.
		// The "0" value cannot be set by the user under RFP in
		// about:preferences. The "2" value can be set, but has a different
		// name and a warning about website detectability. tor-browser#43850.
		"browser.display.document_color_use",
		// Under RFP, the following colours are ignored. So we clear them.
		// NOTE: Only a subset of can be set via the colors.xhtml dialog in
		// about:preferences.
		"browser.anchor_color",
		"browser.anchor_color.dark",
		"browser.visited_color",
		"browser.visited_color.dark",
		"browser.display.foreground_color",
		"browser.display.foreground_color.dark",
		"browser.display.background_color",
		"browser.display.background_color.dark",
		"browser.active_color",
		"browser.active_color.dark",
		]) {
		Services.prefs.clearUserPref(prefName);
		}
		}
		}
		Services.prefs.setIntPref(MIGRATION_PREF, MIGRATION_VERSION);
		},
		};

mobile/shared/components/geckoview/GeckoViewStartup.sys.mjs

+46 −0

Original line number	Diff line number	Diff line
		@@ -275,6 +275,8 @@ export class GeckoViewStartup {
		"GeckoView:InitialForeground",
		]);

		this.#migratePreferences();

		Services.obs.addObserver(this, "browser-idle-startup-tasks-finished");
		Services.obs.addObserver(this, "handlersvc-store-initialized");

		@@ -414,6 +416,50 @@ export class GeckoViewStartup {
		break;
		}
		}

		/**
		* This is the equivalent of BrowserGlue._migrateUITBB.
		*/
		#migratePreferences() {
		const MIGRATION_VERSION = 1;
		const MIGRATION_PREF = "torbrowser.migration_android.version";

		// We do not have a way to check for new profiles on Android.
		// However, the first version is harmless for new installs, so run it
		// anyway.
		const currentVersion = Services.prefs.getIntPref(MIGRATION_PREF, 0);
		if (currentVersion < 1) {
		// First implementation of the migration on Android (tor-browser#43124,
		// 14.0a5, September 2024).
		const prefToClear = [
		// Old torbutton preferences not used anymore.
		// Some of them should have never been set on Android, as on Android we
		// force PBM... But who knows about very old profiles.
		"browser.cache.disk.enable",
		"places.history.enabled",
		"security.nocertdb",
		"permissions.memory_only",
		"extensions.torbutton.loglevel",
		"extensions.torbutton.logmethod",
		"extensions.torbutton.pref_fixup_version",
		"extensions.torbutton.resize_new_windows",
		"extensions.torbutton.startup",
		"extensions.torlauncher.prompt_for_locale",
		"extensions.torlauncher.loglevel",
		"extensions.torlauncher.logmethod",
		"extensions.torlauncher.torrc_fixup_version",
		// tor-browser#42149: Do not change HTTPS-Only settings in the security
		// level.
		"dom.security.https_only_mode_send_http_background_request",
		];
		for (const pref of prefToClear) {
		if (Services.prefs.prefHasUserValue(pref)) {
		Services.prefs.clearUserPref(pref);
		}
		}
		}
		Services.prefs.setIntPref(MIGRATION_PREF, MIGRATION_VERSION);
		}
		}

		GeckoViewStartup.prototype.classID = Components.ID(