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 will open and operate perfectly for a number of seconds then it "hangs" and can only be closed from task manager.

  • 1 reply
  • 2 have this problem
  • 1 view
  • Last reply by cor-el

more options

firefox opens and works perfectly but after about 5 seconds it hangs. nothing will work, menue bar "greys out". Only option is to close using task manager. have attempted reinstalling but this makes no difference.

firefox opens and works perfectly but after about 5 seconds it hangs. nothing will work, menue bar "greys out". Only option is to close using task manager. have attempted reinstalling but this makes no difference.

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)


See also: