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