The Tor Browser / file revision

 /* 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/. */

 pref("startup.homepage_override_url", "https://www.mozilla.org/projects/firefox/%VERSION%/whatsnew/?oldversion=%OLD_VERSION%");

 pref("startup.homepage_welcome_url", "https://www.mozilla.org/projects/firefox/%VERSION%/firstrun/");

 // The time interval between checks for a new version (in seconds)

 pref("app.update.interval", 7200); // 2 hours

 // The time interval between the downloading of mar file chunks in the

 // background (in seconds)

 pref("app.update.download.backgroundInterval", 60);

 // Give the user x seconds to react before showing the big UI. default=12 hours

 pref("app.update.promptWaitTime", 43200);

 // URL user can browse to manually if for some reason all update installation

 // attempts fail.

 pref("app.update.url.manual", "https://nightly.mozilla.org");

 // A default value for the "More information about this update" link

 // supplied in the "An update is available" page of the update wizard. 

 pref("app.update.url.details", "https://nightly.mozilla.org");

 // The number of days a binary is permitted to be old

 // without checking for an update.  This assumes that

 // app.update.checkInstallTime is true.

 pref("app.update.checkInstallTime.days", 2);

 // Search codes belong only in builds with official branding

 pref("browser.search.param.yahoo-fr", "");

 pref("browser.search.param.yahoo-fr-cjkt", ""); // now unused

 pref("browser.search.param.yahoo-fr-ja", "");

 pref("browser.search.param.yahoo-f-CN", "");

 #ifdef MOZ_METRO

 pref("browser.search.param.yahoo-fr-metro", "");

 #endif