Installation and updates

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

Ci àngale

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

Install an older version of Firefox

Firefox has ended support for Windows XP and Vista

Uninstall Firefox from your computer

Firefox users on macOS 10.12, 10.13 and 10.14 moving to Extended Support Release

Run Firefox on ChromeOS

Recover user data missing after Firefox update

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

I found a fake Firefox update

Switch from Chrome to Firefox

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

Windows in S mode won't let me install Firefox

Switch to Firefox Extended Support Release (ESR) for personal use

What is the Mozilla Maintenance Service?

Importing Safari data into Firefox

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

Solutions for "Can not create temp folder archive" error when installing Firefox (Windows 10)

Why do I get a harmful download message when downloading Firefox on Windows?

Troubleshoot Firefox updates and the Helper tool

Firefox update notifications on Windows

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

64-bit Firefox crashes with Citrix's XenApp VM

Supported platforms and system requirements

Resolve “The installation seems to be incomplete/corrupt” error in Firefox on Windows

Firefox release notes - What's new and known issues

Search Support

Installation and updates

Ci àngale

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

Install an older version of Firefox

Firefox has ended support for Windows XP and Vista

Uninstall Firefox from your computer

Firefox users on macOS 10.12, 10.13 and 10.14 moving to Extended Support Release

Run Firefox on ChromeOS

Recover user data missing after Firefox update

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

I found a fake Firefox update

Switch from Chrome to Firefox

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

Windows in S mode won't let me install Firefox

Switch to Firefox Extended Support Release (ESR) for personal use

What is the Mozilla Maintenance Service?

Importing Safari data into Firefox

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

Solutions for "Can not create temp folder archive" error when installing Firefox (Windows 10)

Why do I get a harmful download message when downloading Firefox on Windows?

Troubleshoot Firefox updates and the Helper tool

Firefox update notifications on Windows

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

64-bit Firefox crashes with Citrix's XenApp VM

Supported platforms and system requirements

Resolve “The installation seems to be incomplete/corrupt” error in Firefox on Windows

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

Ci àngale

Volunteer