Installation and updates Learn how to install your favorite Mozilla products and keep them updated. In English 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 Update Firefox to the latest release Download Firefox on Windows from the Microsoft Store Firefox users on macOS 10.12, 10.13 and 10.14 moving to Extended Support Release Uninstall Firefox from your computer Find what version of Firefox you are using Run Firefox on ChromeOS Custom installation of Firefox on Windows Firefox has ended support for Windows XP and Vista I found a fake Firefox update Profiles - Where Firefox stores your bookmarks, passwords and other user data Firefox Mac OS X 10.9, 10.10 and 10.11 users move to Extended Support Release Back up and restore information in Firefox profiles What is the Mozilla Maintenance Service? Profile Manager - Create, remove or switch Firefox profiles Enable background updates on Firefox for Windows when Firefox is not running Windows in S mode won't let me install Firefox Recover user data missing after Firefox update Importing Safari data into Firefox Install an older version of Firefox 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 Update Firefox to prevent add-ons issues from root certificate expiration How do I tell if I have the 32-bit or 64-bit Firefox? Supported platforms and system requirements Firefox release notes - What's new and known issues