Installation and updates

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

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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

Back up and restore information in Firefox profiles

Profile Manager - Create, remove or switch Firefox profiles

Update Firefox to the latest release

Download Firefox on Windows from the Microsoft Store

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

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

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

Run Firefox on ChromeOS

Recovering important data from an old profile

Uninstall Firefox from your computer

Custom installation of Firefox on Windows

Firefox has ended support for Windows XP and Vista

I found a fake Firefox update

Find what version of Firefox you are using

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

Install an older version of Firefox

Windows in S mode won't let me install Firefox

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

What is the Mozilla Maintenance Service?

Recover user data missing after Firefox update

Importing Safari data into Firefox

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

64-bit Firefox crashes with Citrix's XenApp VM

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?

Supported platforms and system requirements

Firefox release notes - What's new and known issues

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Installation and updates

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

Back up and restore information in Firefox profiles

Profile Manager - Create, remove or switch Firefox profiles

Update Firefox to the latest release

Download Firefox on Windows from the Microsoft Store

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

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

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

Run Firefox on ChromeOS

Recovering important data from an old profile

Uninstall Firefox from your computer

Custom installation of Firefox on Windows

Firefox has ended support for Windows XP and Vista

I found a fake Firefox update

Find what version of Firefox you are using

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

Install an older version of Firefox

Windows in S mode won't let me install Firefox

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

What is the Mozilla Maintenance Service?

Recover user data missing after Firefox update

Importing Safari data into Firefox

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

64-bit Firefox crashes with Citrix's XenApp VM

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?

Supported platforms and system requirements

Firefox release notes - What's new and known issues

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