Start Firefox in Safe Mode

How to start Firefox in Safe Mode

Click the menu button, click Help and select Restart with Add-ons Disabled…. Firefox will start up with the Firefox Safe Mode dialogue.

Note: You can also start Firefox in Safe Mode by holding down the shift key while starting Firefox.

Safe Mode window

You now have two options:

  • Clicking the Start in Safe Mode button will temporarily disable your extensions and themes, turn off hardware acceleration and reset toolbar and button customizations. When you leave Safe Mode and start Firefox up normally, your extensions, themes, and settings will return to the state they were in before you entered Safe Mode.
  • Clicking the Refresh Firefox button will restore Firefox to its factory default state while saving your essential information. See Refresh Firefox – reset add-ons and settings for more information about this option.

Need Firefox Support in Massachusetts? Call 1-855-969-1880.

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