Firefox crashes


Mozilla Crash Reporter

The Mozilla Crash Reporter dialog box appears when Firefox crashes and lets you send a crash report. Learn how it works and how to access your crash reports.

Firefox Firefox Last updated: 12/04/2023

Firefox won't start - find solutions

This article explains what to do if the Firefox window does not open or you get an error message when you try to start Firefox.

Firefox Firefox Last updated: 09/01/2023

Firefox crashes - asking for support

If nothing in the documentation seems to resolve issues with a Firefox crash, our community support forum volunteers may be able to help.

Firefox Firefox Last updated: 03/01/2022

Firefox keeps crashing at startup

If Firefox keeps crashing when you try to start it and other solutions don't work, a clean reinstall can often fix the problem.

Firefox Firefox Last updated: 11/09/2022
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