Installation and updates

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

Update Firefox to the latest release

Firefox automatically updates itself by default, but you can always do a manual update. Learn how to update Firefox on Windows, Mac, or Linux.

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Install Firefox on Linux

This article describes how to download and install Firefox on Linux.

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Export your Thunderbird Profile

Thunderbird's export tool lets you create a backup of your Thunderbird profile including accounts, messages, address books, and settings.

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Import settings and data into Thunderbird

With Thunderbird's import tool, you can import settings and data from a variety of sources including Thunderbird profiles, other applications or files.

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Thunderbird and Gmail

Thunderbird can be set up to work seamlessly with Google's Gmail. Messages will be synchronized between your local version of Thunderbird and web-based Gmail.

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Run Firefox on ChromeOS

This page explains how to install Firefox on Chromebooks and other devices running ChromeOS.

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Custom installation of Firefox on Windows

The custom setup option in the Firefox full, offline installer lets you choose the program folder location and shortcuts. Learn more.

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How to install Mozilla VPN on a Linux computer

Download and install Mozilla VPN to connect to the internet through one of our secure servers, keeping your location and online activity private.

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Choosing a Firefox update channel

How to choose between rapid release and extended support release (ESR).

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Uninstall Firefox from your computer

This article describes how to uninstall the Firefox application from your computer and also how to remove the personal information that Firefox stores.

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Deploy Firefox with MSI installers

Firefox Enterprise offers MSI installers to help system administrators customize and deploy Firefox in their environments.

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Install an older version of Firefox

Downgrading to a previous Firefox version doesn't solve most problems. This article links to older versions and provides some alternatives.

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I found a fake Firefox update

What to do if you spot fake notices claiming to contain an "urgent" or "critical" Firefox update.

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IMAP Synchronization

IMAP stands for the Internet Message Access Protocol. It enables a mail client (such as Thunderbird) to access messages stored on a mail server. It is more modern and fully featured than POP (Post Office Protocol), which is the other major protocol for accessing mail messages. Most email providers now support IMAP. To see whether your account uses IMAP or POP, check the Server Settings page in the Account Settings.

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Installing an Add-on in Thunderbird

Add-ons add functionality to Thunderbird or change its appearance. Learn how to install add-ons to Thunderbird.

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End of support for Firefox Lockwise

Mozilla ended support for the Firefox Lockwise app on Android and iOS, effective December 13, 2021, and integrated its functionality into Firefox mobile.

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Switching to Thunderbird

This article explains how you can switch to Thunderbird from your current mail application, such as Windows Mail, Outlook or also Mail on Mac OS and Evolution on Linux.

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What is the Mozilla Maintenance Service?

Firefox and Thunderbird install Mozilla Maintenance Service to allow seamless background updates. Learn how it works and how to disable or remove it.

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Repackaging the Windows Installer

Sometimes you might need to include changes you've made to Firefox in a new installer. This document shows how to do that.

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Deploying Firefox on Windows

How to deploy Firefox for Enterprise on Windows devices.

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Importing Safari data into Firefox

Import data from your Safari browser into Firefox. You must enable Full Disk Access on macOS version 10.14 (Mojave).

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How to sign up for Mozilla VPN

Follow the steps in this article to sign up for Mozilla VPN on your desktop computer or mobile device.

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New in Thunderbird 102

Detailed introduction to the most interesting new features, improvements, and changes visible to users in Thunderbird 102.0.

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How to download and install Mozilla VPN on iOS

Download and install Mozilla VPN to connect to the internet through one of our secure servers, keeping your location and online activity private.

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New in Thunderbird 128 Nebula

Detailed introduction to the most interesting new features, improvements, and changes visible to users in Thunderbird 128.0 Nebula.

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Thunderbird Software Update Failed

This article presents possible solutions to this problem and workarounds to get Thunderbird updated.

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Uninstall Firefox for Android

Learn how to uninstall/remove Firefox for Android from your device.

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Uninstall Firefox for iOS

If Firefox isn't for you, uninstalling it from your iOS device only takes a few seconds.

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Thunderbird Beta

Test new features and fixes in the most stable pre-release build of Thunderbird.

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Best practices for installing and updating Firefox

Disable automatic updates through the DisableAppUpdate policy, and get Firefox beta builds to test features in your environment before deployment.

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Install Firefox Lockwise on iOS

Firefox Lockwise lets you access your synced logins so you can sign in to apps and websites across devices.

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Install Firefox Lockwise on Android

Firefox Lockwise lets you access your synced logins so you can sign in to apps and websites across devices.

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Managing Thunderbird Updates

Learn about automatic updates for Thunderbird deployments and how to ensure that the latest security patches are applied and all features are available.

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Firefox for Android (68 and earlier) end of support

Old versions of Firefox for Android will no longer receive security and performance updates. Please get the latest version of Firefox for Android.

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How to enable Always-on VPN on Android

Enable “Always-on VPN” on Android to encrypt your connection automatically every time you browse the Internet on your phone.

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Custom installation of Thunderbird on Windows

The custom setup option in the Thunderbird full, offline installer lets you choose the Windows program folder location and shortcuts. Learn more.

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New in Thunderbird 115 Supernova

Detailed introduction to the most interesting new features, improvements, and changes visible to users in Thunderbird 115.0 Supernova.

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Will Firefox work on my mobile device?

This article lists mobile devices that you can install Firefox on.

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