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!

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

Firefox freezes with unresponsive script error messages. Whether I choose to continue or not, these keep occurring. What causes these, how do I stop them? There is alot of hang time which is frustrating.

  • 1 reply
  • 49 have this problem
  • 11 views
  • Last reply by cor-el

more options

Firefox freezes with unresponsive script error messages. Whether I choose to continue or not, these keep occurring. What causes these, how do I stop them? There is alot of hang time which is frustrating.

Firefox freezes with unresponsive script error messages. Whether I choose to continue or not, these keep occurring. What causes these, how do I stop them? There is alot of hang time which is frustrating.

All Replies (1)

more options

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.

  • Use "Disable all add-ons" on the Safe mode start window to disable all extensions.
  • Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

In Firefox 4 you can use one of these to start in Safe mode:

  • Help > Restart with Add-ons Disabled
  • Hold down the Shift key while double clicking the Firefox desktop shortcut (Windows)