Download Firefox Stelsels en tale Wat's nuut Privaatheid Performance and connectivity Deal with error messages, crashing applications, connectivity issues, and slow performance. Almal All articles and threads Crashing and slow performance Site breakages Connectivity Error codes More Almal All articles and threads Crashing and slow performance Site breakages Connectivity Error codes In Engels Secure connection failed and Firefox did not connect How to troubleshoot time related errors on secure websites Fix "The bookmarks and history system will not be functional" error message Website will not allow Firefox to display the page if another site has embedded it Captive portal detection Connection settings in Firefox How to troubleshoot security error codes on secure websites Diagnose Firefox issues using Troubleshoot Mode What do the security warning codes mean? Troubleshoot and diagnose Firefox problems Warning Unresponsive script - What it means and how to fix it Task Manager - see whether tabs or extensions are slowing down Firefox Resist Fingerprinting Firefox uses too much memory or CPU resources - How to fix DNS over HTTPS (DoH) FAQs Where to go for developer support How to fix the Update Failed error message when updating Firefox Firefox hangs or is not responding - How to fix Certificate contains the same serial number as another certificate How to reset the default user agent on Firefox Use the Troubleshooting Information page to help fix Firefox issues How do I report a broken site in Firefox desktop? How to let Firefox use the internet on your Windows computer Firefox DNS over HTTPS Firefox blocked by macOS 15 Sequoia firewall - What you need to know Firefox can't load websites but other browsers can Websites look wrong or appear differently than they should "Firefox is already running but is not responding" error - How to fix Unload inactive tabs to save system memory in Firefox Server Not Found - Troubleshoot connection problems Drag and Drop errors with Firefox Launcher Process enabled and Windows UAC disabled - How to Fix Identify problems caused by third-party modules in Firefox for Windows HTTPS-First upgrades to secure connections Firefox takes a long time to start up Firefox says it's just updated every time it starts - how to fix Quick fixes if your Firefox slows down Firefox hangs when copying with Suggested Actions enabled on Windows 11 - What to do X-Mouse Button Control in Firefox 110 Firefox uses too many CPU resources - How to fix Websites say that Firefox is outdated or incompatible even though it's the latest version Firefox does not work - Common fixes to get you back up and running Memory constraints, Firefox performance and Firewalls Rate your Firefox experience, surveys and out of date messages (Heartbeat) How to resolve weak crypto error messages on Firefox 64-bit Firefox crashes with Citrix's XenApp VM Disable Firefox Sync How to fix an error when trying to open Telegram or Slack on Firefox Solutions for "Can not create temp folder archive" error when installing Firefox (Windows 10) Difficulties opening or using a website in Firefox 100 Address screen sharing issues with Firefox on macOS 15 Sequoia Troubleshoot Firefox crashes (closing or quitting unexpectedly) Firefox repeatedly opens empty tabs or windows after you click on a link Firefox is stuck in Troubleshoot Mode Fix video and audio problems on Firefox for Windows N editions Problems with email and how to find help Avoid crashes - Tips and tricks Firefox keeps crashing at startup Home page with pipe character opens extra tabs when Firefox starts How to run Firefox when your profile is missing or inaccessible