Troubleshoot and diagnose Firefox problems - Mozilla Support
Sep 19, 2025 · 3. Restart Firefox in Troubleshoot Mode Firefox Troubleshoot Mode is a diagnostic mode that disables extensions, uses the default theme, turns off hardware acceleration and …
Firefox does not work - Common fixes to get you back up and …
Feb 9, 2022 · Do you have days where Firefox just doesn't work? Well, we put together this guide to help. It'll show you where you can find solutions to many common issues and, as always, if …
Firefox can't load websites but other browsers can
Jul 7, 2022 · We'll explain errors such as "Server not found" or "Unable to connect" and how to fix problems where Firefox can't access websites but other browsers can.
Firefox hangs or is not responding - How to fix | Firefox Help
Nov 26, 2024 · When Firefox hangs, it stops responding to clicks or keystrokes and seems to be frozen. This article has possible solutions, depending on when this happens.
Firefox won't start - find solutions | Firefox Help - Mozilla Support
Sep 1, 2023 · Firefox won't start - find solutions Firefox Firefox Last updated: 9/1/23 21% of users voted this helpful This article describes what to do if Firefox does not open when you click the …
Firefox startet nicht | Hilfe zu Firefox - Mozilla Support
Dec 9, 2023 · Der Artikel beschreibt Lösungsmöglichkeiten, wenn sich das Firefox-Fenster nicht öffnet oder wenn Sie beim Start von Firefox eine Fehlermeldung erhalten.
Troubleshoot Firefox crashes (closing or quitting unexpectedly)
Sep 19, 2025 · Before getting started: If the page stops working because part of the page has crashed or stopped responding, try reloading the page to see if that fixes the problem. If …
What to do if you can't download or save files | Firefox Help
Feb 20, 2025 · This article describes steps to take if you are unable to download or save files using Firefox. Note: The Refresh Firefox feature can fix many issues by restoring Firefox to its …
Websites don't load - troubleshoot and fix error messages
Sep 2, 2025 · See Websites say cookies are blocked - Unblock them for more information. If you get a File not found error, try the troubleshooting steps in these articles: Troubleshoot …
Fix printing problems in Firefox | Firefox Help - Mozilla Support
Aug 16, 2025 · This article describes how to troubleshoot printing problems in Firefox. For general information about printing in Firefox, see How to print web pages in Firefox.