backgroundtasks.js

Enable keyboard shortcuts

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#filter substitution;

// These preferences override Gecko preferences in `greprefs.js`.  Use

// `backgroundtasks_browser.js` to override browser/-specific preferences in

// `firefox.js`.

/* global pref */

pref("browser.dom.window.dump.enabled", true);

pref("devtools.console.stdout.chrome", true);

pref("browser.cache.disk.enable", false);

pref("permissions.memory_only", true);

// For testing only: used to test that backgroundtask-specific prefs are

// processed.  This just needs to be an unusual integer in the range 0..127.

pref("test.backgroundtask_specific_pref.exitCode", 79);

// Enable the browser toolbox by default.  The browser toolbox is available only

// when launching the background task with `--jsdebugger` on the command line,

// and an attacker who can launch background task processes with arbitrary

// parameters and execution environment can already access this functionality,

// so there's no need to restrict access via preferences.

pref("devtools.chrome.enabled", true);

pref("devtools.debugger.remote-enabled", true);

pref("devtools.debugger.prompt-connection", false);

// Background tasks do not persist the cookie database: they should

// not be using cookies for network requests.

pref("network.cookie.noPersistentStorage", true);

// Background tasks don't need to worry about perceived performance. We disable

// fast shutdown to reduce the risk of open file handles preventing cleanup of

// the ephemeral profile directory.

pref("toolkit.shutdown.fastShutdownStage", 0);

// Avoid a race between initializing font lists and rapid shutdown,

// particularly on macOS.  Compare Bug 1777332.

pref("gfx.font-list-omt.enabled", false);

// Prevent key#.db and cert#.db from being created in the ephemeral profile.

pref("security.nocertdb", true);

// Prevent asynchronous preference writes.

pref("preferences.allow.omt-write", false);

// Enable automatic restarts during background updates for Nightly builds.

#ifdef NIGHTLY_BUILD

pref("app.update.background.automaticRestartEnabled", true);

#else

pref("app.update.background.automaticRestartEnabled", false);

#endif

#if defined(ENABLE_TESTS)

  // Test prefs to verify background tasks override gecko prefs correctly.

  pref("toolkit.backgroundtasks.tests.geckoPrefsOverriden", 28);

#endif