Add-on Badges

You’ll know if an extension is being regularly reviewed if it has one of the badges listed in this article.

Firefox Firefox Last updated: 01/15/2024

Extensions in Private Browsing

You can set which Firefox extensions can run in private windows and which can't, when you install the extension or later on. Learn more.

Firefox Firefox Last updated: 08/21/2022

Disable or remove Add-ons

Extensions and themes are types of add-ons for Firefox. This article describes how to disable and remove add-ons in Firefox.

Firefox Firefox Last updated: 01/23/2023

Recommended Extensions program

Learn how extensions make the cut for the Recommended Extensions program and where they can be found.

Firefox Firefox Last updated: 01/06/2022

Multi-Account Containers

Add Container tabs to Firefox with the Multi-Account Containers add-on, to separate your work and personal browsing.

Firefox Firefox Last updated: 03/01/2024

Filelink for Large Attachments

Messages with large attachments are often rejected by mail servers. Thunderbird can use web-based storage services to send large file attachments.

Thunderbird Thunderbird Last updated: 12/03/2023

Mozilla VPN - FAQ

Find answers to some of the most common questions about Mozilla VPN in this article.

Mozilla VPN Mozilla VPN Last updated: 07/02/2023

Add-on signing in Firefox

Learn about add-on signing and what to do if an extension you want to use could not be verified for use in Firefox.

Firefox Firefox Last updated: 06/05/2022

Cannot remove an add-on (extension or theme)

This article describes how to uninstall an extension or theme that can't be removed normally. This includes problematic toolbars and search bars.

Firefox Firefox Last updated: 07/02/2022

Use themes to change the look of Firefox

A theme is a type of add-on that changes the visual appearance of Firefox. Learn how to find, install, and manage themes in Firefox.

Firefox Firefox Last updated: 12/04/2023

Open Search

Instantly take part of a message and search for it in Bing, Yahoo, Twitter or other websites.

Thunderbird Thunderbird Last updated: 11/18/2018

How to Customize Toolbars

This article explains how to customize the position and contents of Thunderbird toolbars.

Thunderbird Thunderbird Last updated: 07/11/2023

Add Search Engine to Open Search

Open Search enables Thunderbird users to search various websites from within Thunderbird. This article describes how to add additional websites to the Open Search interface.

Thunderbird Thunderbird Last updated: 11/25/2018

Installing an Add-on in Thunderbird

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

Thunderbird Thunderbird Last updated: 12/17/2023

Access your add-ons with a Mozilla account

The addons.mozilla.org (AMO) site is using Mozilla accounts to offer a more integrated experience across all Mozilla services and products.

Firefox, Mozilla Account Firefox, Mozilla Account Last updated: 11/28/2023

How to update add-ons

This article explains how to update your Firefox add-ons from the Extensions panel in the Add-ons Manager.

Firefox Firefox Last updated: 07/25/2019

Review installed extensions

Reviewing the extensions you have installed periodically can make it harder for malicious extensions to put your security and privacy at risk.

Firefox Firefox Last updated: 07/01/2019

Unified Toolbar

Intro to the Unified Toolbar and how to customize the buttons for the different toolbars for: Mail, Address Book, Calendar, Tasks, Chat and Settings "Spaces."

Thunderbird Thunderbird Last updated: 06/12/2024

Troubleshoot issues related to add-ons

Add-ons can cause issues in Firefox. This article provides more information on how you can troubleshoot Firefox issues related to add-ons.

Firefox Firefox Last updated: 05/29/2021

Firefox Translations Add-on

Translate web pages in Firefox when you visit a site that's in another language, without using the cloud.

Firefox Firefox Last updated: 02/16/2024

Site Permission Add-ons

Sites can ask to install permission add-ons that modify Firefox’s default security behavior to give them extra privileges. Learn more.

Firefox Firefox Last updated: 01/02/2023
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