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@@ -1300,6 +1300,9 @@ BrowserGlue.prototype = { |
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// handle any UI migration
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1301
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this._migrateUI();
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1303
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+ // Base Browser-specific version of _migrateUI.
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+ this._migrateUIBB();
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+
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// Handle any TBB-specific migration before showing the UI. Keep after
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// _migrateUI to make sure this._isNewProfile has been defined.
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this._migrateUITBB();
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@@ -4404,6 +4407,25 @@ BrowserGlue.prototype = { |
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Services.prefs.setIntPref("browser.migration.version", UI_VERSION);
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},
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4409
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+ _migrateUIBB() {
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+ // Version 1: 13.0a3. Reset layout.css.prefers-color-scheme.content-override
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+ // for tor-browser#41739.
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+ const MIGRATION_VERSION = 1;
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+ const MIGRATION_PREF = "basebrowser.migration.version";
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+ // We do not care whether this is a new or old profile, since in version 1
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+ // we just quickly clear a user preference, which should not do anything to
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+ // new profiles.
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+ // Shall we ever raise the version number and have a watershed, we can add
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+ // a check easily (any version > 0 will be an old profile).
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+ const currentVersion = Services.prefs.getIntPref(MIGRATION_PREF, 0);
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+ if (currentVersion < 1) {
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+ Services.prefs.clearUserPref(
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+ "layout.css.prefers-color-scheme.content-override"
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+ );
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+ }
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+ Services.prefs.setIntPref(MIGRATION_PREF, MIGRATION_VERSION);
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+ },
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+
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4407
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// Use this method for any TBB migration that can be run just before showing
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// the UI.
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// Anything that critically needs to be migrated earlier should not use this.
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