We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Firefox won't finish resetting to default to speed it up

erincofran1
erincofran1
more options

Shockwave flash crashed on me, so I updated it. It still crashed. I updated Firefox, thinking that might be the problem, and it still crashed. I got a message saying that Firefox was running slow, so I tried to refresh it, and it's got a window with the message "Almost done" and a full green bar that is still acting like it's loading. I tried closing it once and had issues getting Firefox to work again, so I don't want to try that again. What do I do now?

Shockwave flash crashed on me, so I updated it. It still crashed. I updated Firefox, thinking that might be the problem, and it still crashed. I got a message saying that Firefox was running slow, so I tried to refresh it, and it's got a window with the message "Almost done" and a full green bar that is still acting like it's loading. I tried closing it once and had issues getting Firefox to work again, so I don't want to try that again. What do I do now?

All Replies (1)

ruwaiz razak
ruwaiz razak
more options

Hello,

Try Firefox Safe Mode to see if the problem goes away. Firefox Safe Mode is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes).

If Firefox is open, you can restart in Firefox Safe Mode from the Help menu:

  • Click the menu button New Fx Menu, click Help Help-29 and select Restart with Add-ons Disabled.

If Firefox is not running, you can start Firefox in Safe Mode as follows:

  • On Windows: Hold the Shift key when you open the Firefox desktop or Start menu shortcut.
  • On Mac: Hold the option key while starting Firefox.
  • On Linux: Quit Firefox, go to your Terminal and run firefox -safe-mode
    (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)

When the Firefox Safe Mode window appears, select "Start in Safe Mode".

SafeMode-Fx35

If the issue is not present in Firefox Safe Mode, your problem is probably caused by an extension, theme, or hardware acceleration. Please follow the steps in the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article to find the cause.

To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.

When you figure out what's causing your issues, please let us know. It might help others with the same problem.