Installation and updates Learn how to install your favorite Mozilla products and keep them updated. NgesiNgesi Update Firefox to the latest release Windows 10 warns me to use a "Microsoft-verified" app How to install Firefox on Windows Firefox users on Windows 7, 8 and 8.1 moving to Extended Support Release How to download and install Firefox on Mac Back up and restore information in Firefox profiles Find what version of Firefox you are using Download Firefox on Windows from the Microsoft Store Run Firefox on ChromeOS Switch from Chrome to Firefox Custom installation of Firefox on Windows Uninstall Firefox from your computer Firefox has ended support for Windows XP and Vista Install Firefox on Linux Enable background updates on Firefox for Windows when Firefox is not running Firefox users on macOS 10.12, 10.13 and 10.14 moving to Extended Support Release Install an older version of Firefox Windows in S mode won't let me install Firefox I found a fake Firefox update Recover user data missing after Firefox update Importing Safari data into Firefox Update Firefox to prevent add-ons issues from root certificate expiration Firefox Mac OS X 10.9, 10.10 and 10.11 users move to Extended Support Release Why do I get a harmful download message when downloading Firefox on Windows? What is the Mozilla Maintenance Service? Firefox update notifications on Windows Firefox security features warning on Linux 64-bit Firefox crashes with Citrix's XenApp VM Solutions for "Can not create temp folder archive" error when installing Firefox (Windows 10) Resolve “The installation seems to be incomplete/corrupt” error in Firefox on Windows How do I tell if I have the 32-bit or 64-bit Firefox? Switch to Firefox Extended Support Release (ESR) for personal use Supported platforms and system requirements Firefox release notes - What's new and known issues