Join the AMA (Ask Me Anything) with Firefox leadership team to talk about Firefox priorities in 2024. Mark your calendar! Thursday, June 13, 17:00 - 19:00 UTC.

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 crashes at startup

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

more options

Hello,

I can not start Firefox. It crashes when it starts. I tried even to re-install firefox. It does not help.

Hello, I can not start Firefox. It crashes when it starts. I tried even to re-install firefox. It does not help.

All Replies (1)

more options

bp-1ee2d6cc-025b-4c5a-a7e1-b42552141008

Firefox 32.0.3 Crash Report [@ nsFrame::BoxReflow(nsBoxLayoutState&, nsPresContext*, nsHTMLReflowMetrics&, nsRenderingContext*, int, int, int, int, bool) ]


Do a clean reinstall and delete the Firefox program folder before (re)installing a fresh copy of the current Firefox release.

If possible uninstall your current Firefox version to cleanup the Windows registry and settings in security software.

  • Do NOT remove "personal data" when you uninstall your current Firefox version, because this will remove all profile folders and you lose personal data like bookmarks and passwords including data in profiles created by other Firefox versions.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • (32 bit Windows) "C:\Program Files\Mozilla Firefox\"
  • (64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\"

Your bookmarks and other personal data are stored in the Firefox profile folder and won't be affected by an uninstall and (re)install, but make sure NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.

If you keep having problems then also create a new profile.