safe older versions of firefox for windows

(If the Profile Manager opens, select a profile and then hold down the Shift key again while clicking the 'Start Firefox' button.) In current Mozilla application versions, hold down the Shift key while double-clicking the Firefox/Thunderbird/SeaMonkey icon.This should not be confused with restarting the computer in Windows Safe Mode! Use one of these methods to start your Mozilla application in Safe Mode. To enter Safe Mode in previous versions (or if you can't open your Mozilla application to use the Help menu) you must first make sure Firefox/Thunderbird/SeaMonkey is not running in the background (including all windows like the Download Manager that open in a separate window) before following the instructions given below. A Safe Mode options window will appear when they restart (see below).

In current versions of Firefox, Thunderbird, and SeaMonkey 2, you can restart in Safe Mode via ' Help -> Restart with Add-ons disabled.'.Safe Mode also includes a number of troubleshooting options that allow you to make certain changes upon restarting your Mozilla application ( see below). Safe Mode has no effect on the following:.The userChrome.css and userContent.css files are ignored. The Just-in-time (JIT) JavaScript compiler is disabled. The default theme is used, without a persona. Safe Mode temporarily affects the following:Īll extensions are disabled.Any changes made to preference settings remain in effect in Safe Mode, however, and all available plugins are used. Safe Mode also disables hardware acceleration, the Just-in-time (JIT) JavaScript compiler, and any changes made via userContent.css and userChrome.css. Safe Mode is a debugging startup mode available in Firefox, Thunderbird, and SeaMonkey 2, where all added extensions are disabled, the default theme is used, and default localstore settings (toolbar settings and controls) are used.

Safe older versions of firefox for windows