How to Restart Firefox in Safe Mode

For many computer users the Web browser is the most commonly used application on their computer. There are a number of great Web browsers that you can have in Windows, one of which is the Firefox browser from Mozilla.

Unfortunately Web browsers can experience a number of performance-issues, so you may need to troubleshoot your browser if you are experiencing unexpected behavior. Firefox has a Safe Mode that you can use, which will disable your add-ons and a couple of other settings so that you can see if they were the cause of the poor performance. Our tutorial below will show you how to get into Safe Mode in the desktop version of Firefox.


How to Put Firefox into Safe Mode for Troubleshooting

The steps in this article were performed in the desktop version of Firefox running on Windows 10. Completing these steps will show you how to restart the Firefox Web browser with Add-ons disabled, which will let you put the browser into Safe Mode.

Step 1: Open Firefox.


Step 2: Click the Open menu button at the top-right of the window.

open the firefox menu



Step 3: Select the Help option.

open firefox help menu



Step 4: Choose the Restart with Add-ons Disabled option.

how to start firefox with no add-ons enabled



Step 5: Click the Restart Firefox button to confirm that you want to disable all of your add-ons and restart the browser.

how to restart in safe mode in firefox



Step 6: Click the Start in Safe Mode button to put Firefox into Safe Mode.

how to start firefox in safe mode



Note that this will only keep Firefox in Safe Mode for this session. If you close Firefox and restart it, the browser will open as normal, with all of your add-ons re-enabled.


One of the most common settings that can cause problems for Firefox users in Windows is hardware acceleration. Find out how to disable hardware acceleration in Firefox, as well as some other common programs, if you suspect that this may be the cause of your troubles.