Discover solutions for common issues and explore best practices to diagnose and resolve problems.

What happened to Firefox Send?

Firefox Send has been discontinued as of September 17th, 2020. Thank you for trying Firefox Send in the past.

Firefox, Firefox Send Firefox, Firefox Send Last updated: 07/04/2023

Firefox is stuck in Troubleshoot Mode

Learn why Firefox may start in Troubleshoot Mode (previously known as "Safe Mode") when you expect it to start normally and how to fix it.

Firefox Firefox Last updated: 03/11/2023

Problems with email and how to find help

Find out the right direction to get help using webmail in Firefox and links to support pages for popular web-based email services.

Firefox Firefox Last updated: 06/22/2015

Avoid crashes - Tips and tricks

Here are some easy things you can do to avoid crashes and keep Firefox running in tip-top shape.

Firefox Firefox Last updated: 09/21/2021

Latest Firefox issues

This article links to solutions for the latest Firefox issues like problems with Flash not loading or crashing.

Firefox Firefox Last updated: 03/05/2015

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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