List of Firefox add-ons with Updated 6-12 months ago

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Add-ons (also known as extensions) are small programs that run inside web browsers like Mozilla Firefox. They add extra features to the browser without having to download anything new. You can use extensions to make browsing faster, easier, and safer. Some extensions even let you do things like translate text on websites, search the web, and play games.

There are over 28,000 Firefox-addons and 480,000 themes, making it hard to find the best ones. so we have created a way to sort through all of them. Use the dropdown above to set different filters. Add-ons are sorted by number of active users.

To set even more advanced filters, and sort the Firefox add-ons differently, please visit our Advanced search tool. Note that Advanced search tool is only available to premium members.

7,593 results. Page 1 of 304.

#1, Facebook Container

Mozilla Firefox

Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.

4.46 (3,958)

995,348

#2, English United States Dictionary

Jorg K

English United States (en-US) Dictionary as shipped with Firefox 115 ESR.

4.38 (221)

400,722

#3, Firefox Multi-Account Containers

Mozilla Firefox

Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs. Cookies are separated by container, allowing you to use the web with multiple accounts and integrate Mozilla VPN for an extra layer of privacy.

4.61 (6,984)

374,692

#4, Web Threat Shield

Webroot.com

Keeps you safe when browsing the web by identifying and blocking dangerous websites.

4.30 (40)

335,920

#5, Firefox Translations

Mozilla Firefox

Translate websites in your browser, privately, without using the cloud. The functionality from this extension is now integrated into Firefox.

3.64 (912)

325,136

#6, Simple Translate

sienori

Quickly translate selected or typed text on web pages. Supports Google Translate and DeepL API.

4.68 (1,866)

315,984

#7, Video Background Play Fix

JanH

Some sites may not work with Firefox for Android video background play feature. This add-on provides a quick fix by blocking the Page Visibility API and the Fullscreen API.

4.45 (1,231)

181,134

#8, FireShot: Full Web Page Screenshots (♥♥♥♥♥)

susbox

FireShot makes full page screen captures - http://bit.ly/RlBQMV Screenshots are quickly captured and: ― Saved as Image / PDF with links and text ― Sent to clipboard ― Printed Capture all open tabs or provide a list of the URLs for grabbing

4.62 (2,086)

166,749

#9, YouTube High Definition

Baris Derin

YouTube High Definition is a powerful tool that automatically plays all YouTube videos in HD, changes video player size, offers auto-stop and mute, and much more.

3.86 (1,240)

163,256

#10, OneTab

OneTab Team

OneTab - Too many tabs? Convert tabs to a list and reduce browser memory

4.16 (2,380)

153,702

#11, Tab Session Manager

sienori

Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.

4.29 (996)

138,497

#12, Spanish (Spain) Dictionary

tnarik

Spanish/Spain Dictionary

4.41 (155)

111,230

#13, Spanish (Spain) Dictionary

tnarik

Spanish/Spain Dictionary

4.41 (155)

111,230

#14, Spanish (Spain) Dictionary

tnarik

Spanish/Spain Dictionary

4.41 (155)

111,230

#15, Authenticator

mymindstorm

Authenticator generates 2-Step Verification codes in your browser.

4.40 (289)

92,271

#16, Vue.js devtools

Evan You

DevTools extension for debugging Vue.js applications.

4.74 (588)

89,608

#17, ZenMate Free VPN

ZenMate

ZenMate VPN - The best free Firefox VPN extension to hide your IP. Encrypt your connection, access our secure proxy servers & unblock websites easily.

3.42 (1,171)

87,771

#18, Touch VPN - Secure VPN proxy for unlimited access

Максим

Unblock any blocked website and stay secure with Touch VPN. One-click connect to unrestricted browsing through our fast VPN connection. Unlimited bandwidth and completely FREE!

3.93 (1,663)

81,328

#19, Simple Tab Groups

Drive4ik

Create, modify, and quickly change tab groups

4.05 (1,535)

80,041

#20, Block Site

Ray

A customizable, password-protected website blocker and redirector.

4.04 (405)

72,127

#21, Saby Plugin Extension

Tensor Company Ltd.

Это расширение предоставляет транспортного агента для взаимодействия с приложением SBIS Plugin на сайте https://online.sbis.ru Расширение полностью бесплатно, не имеет пользовательского интерфейса, нужно исключительно для реализации канала связи.

4.35 (63)

71,956