Installation and updates

Learn how to install your favorite Mozilla products and keep them updated.

NgesiNgesi

Install Firefox on Linux

Update Firefox to the latest release

Update Firefox to prevent add-ons issues from root certificate expiration

How to install Firefox on Windows

Back up and restore information in Firefox profiles

Profiles - Where Firefox stores your bookmarks, passwords and other user data

Firefox users on Windows 7, 8 and 8.1 moving to Extended Support Release

How to download and install Firefox on Mac

Find what version of Firefox you are using

Profile Manager - Create, remove or switch Firefox profiles

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

Install an older version of Firefox

Run Firefox on ChromeOS

Custom installation of Firefox on Windows

Firefox has ended support for Windows XP and Vista

Enable background updates on Firefox for Windows when Firefox is not running

Windows 10 warns me to use a "Microsoft-verified" app

What is the Mozilla Maintenance Service?

I found a fake Firefox update

Recover user data missing after Firefox update

Firefox Mac OS X 10.9, 10.10 and 10.11 users move to Extended Support Release

How do I tell if I have the 32-bit or 64-bit Firefox?

Windows in S mode won't let me install Firefox

Importing Safari data into Firefox

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

64-bit Firefox crashes with Citrix's XenApp VM

Supported platforms and system requirements

Firefox release notes - What's new and known issues

Search Support

Installation and updates

NgesiNgesi

Install Firefox on Linux

Update Firefox to the latest release

Update Firefox to prevent add-ons issues from root certificate expiration

How to install Firefox on Windows

Back up and restore information in Firefox profiles

Profiles - Where Firefox stores your bookmarks, passwords and other user data

Firefox users on Windows 7, 8 and 8.1 moving to Extended Support Release

How to download and install Firefox on Mac

Find what version of Firefox you are using

Profile Manager - Create, remove or switch Firefox profiles

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

Install an older version of Firefox

Run Firefox on ChromeOS

Custom installation of Firefox on Windows

Firefox has ended support for Windows XP and Vista

Enable background updates on Firefox for Windows when Firefox is not running

Windows 10 warns me to use a "Microsoft-verified" app

What is the Mozilla Maintenance Service?

I found a fake Firefox update

Recover user data missing after Firefox update

Firefox Mac OS X 10.9, 10.10 and 10.11 users move to Extended Support Release

How do I tell if I have the 32-bit or 64-bit Firefox?

Windows in S mode won't let me install Firefox

Importing Safari data into Firefox

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

64-bit Firefox crashes with Citrix's XenApp VM

Supported platforms and system requirements

Firefox release notes - What's new and known issues

Volunteer

Explore by product

Explore by topic

Browse by product

Browse all forum threads by topic

Get help with

Search Support

NgesiNgesi

Volunteer