Troubleshooting
- Why can't I sync my passwords?
- Why can’t I use Firefox sync with my Google or Apple ID?
- Why does Monitor show me in a data breach for a site I never signed up to?
- Why does Mozilla disable some add-ons from running in Firefox?
- Why does Thunderbird warn me that my server doesn't use encryption?
- Why does Thunderbird warn me that my server don't use encryption?
- Why do I have to click to activate plugins?
- Why do I have two versions of Firefox in my Windows Control Panel?
- Why do I not see all my hotmail emails on my Firefox OS device?
- Why do I see a message asking if I want to see the page hosted on HTTPS?
- Why do I see a white screen after updating Mozilla VPN to version 2.8.3?
- Why do Java, Silverlight, Adobe Acrobat and other plugins no longer work?
- Why Firefox says "Your browser is being managed by your organization."
- Why has my "Send" button been replaced with "Send Later"
- Why is each open Firefox tab showing up in the Windows volume mixer?
- Why is each open Firefox tab showing up in the Windows volume mixer? Redirect 1
- Why is Firefox for Mobile slow?
- Will Firefox version 100 work on Windows 7?
- Will policies I set work if users already installed Firefox?
- Windows 10 S won't let me install Firefox
- Windows 10 warns me to use a "Microsoft-verified" app
- Windows in S mode won't let me install Firefox
- Windows Media or other plugins stopped working after Firefox update
- Windows SSO
- Workaround to make Estonian Smartcards work in Firefox 76
- Workaround to make Estonian Smartcards work in Firefox 76+
- Wrong home page opens when I start Firefox - How to fix
- X-Mouse Button Control in Firefox 110
- Yahoo! and at&t mail say your browser is blocking Flash
- Youtube HTML5 does not work in Firefox
- YouTube Thumbnails not loading