List of Firefox add-ons with Updated 1-2 years 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.

#1, Cisco Webex Extension

Cisco WebEx

Join Webex meetings using Firefox ™

#2, Ecosia — The search engine that plants trees 🌱

Ecosia Dev Team

This extension adds Ecosia.org as the default search engine to your browser — it’s completely free!

#3, German Dictionary

KaiRo

German Dictionary (new Orthography) for spellchecking in Firefox

#4, German Dictionary (Switzerland)

KaiRo

Dictionary with Swiss variants of German words for spellchecking in Firefox.

#5, German Dictionary, extended for Austria

KaiRo

German dictionary ("new" orthography) for spellchecking in Firefox, extended with Austrian words

#6, Video Downloader professional

startpage24

- download and save videos embedded into a website to your hard disk - add youtube, vimeo and other videos easily to your video list - supports up to 4k videos

#7, Pinterest Save Button

Pinterest, Inc.

Save your favorite ideas online so you can easily get back to them later.

#8, iCloud Bookmarks

Apple Inc.

Keep your Firefox bookmarks on Windows up to date with your Safari bookmarks on iPhone, iPad, and Mac with the iCloud Bookmarks extension for Firefox.

#9, YouTube Video and Audio Downloader (WebEx)

feller

Download YouTube videos in all available formats and extract the original audio files

#10, GNOME Shell integration

Yuri Konotopov

This extension provides integration with GNOME Shell and the corresponding extensions repository https://extensions.gnome.org

#11, Maps Assist & Custom Web Search

MapsAssist

Install the Maps Assist & Custom Web Search extension to get directions by clicking the favicon on the toolbar & enjoy Yahoo® search from your browser.

#12, Avira Browser Safety

Avira

Avira Browser Safety helps identify internet addresses that are harmful to your system when you are browsing the web and protects your privacy by preventing invisible trackers.

#13, Mendeley Web Importer

Mendeley

Fast, convenient import of references and PDFs to your Mendeley Reference Manager library

#14, Package Tracking Tab & Custom Web Search

PackageTrackingTab

Add the Package Tracking Tab & Custom Web Search extension to track packages online by clicking the favicon on the toolbar & enjoy access to Yahoo® search from your browser.

#15, Converter Suite & Custom Web Search

ConverterSuite

Add the Converter Suite & Custom Web Search extension to convert files by clicking the favicon on the toolbar & access Yahoo® search from your browser.

#16, Tabliss - New Tab

tabliss.io

A beautiful New Tab page with many customisable backgrounds and widgets that does not require any permissions.

#17, Dark Mode (WebExtension)

Bernard

A global dark theme for the web

#18, YouTube Downloader

al3k_popov

Looking for youtube video downloader? Install the YouTube Downloader and download video from YouTube.

#19, Lilo - Search engine

Lilo

add Lilo search engine to Firefox.Lilo is a fast and relevant search engine.Lilo gives its revenue to social and eco-friendly projects and acts for privacy.

#20, Watch2Gether

Watch2Gether

The official Watch2Gether Firefox extension allows you to share content from a supported site (Youtube, Vimeo, ...) directly into a Watch2Gether room. The new W2gSync feature allows you to sync-watch videos from any website on Watch2Gether.

#21, Print Friendly & PDF

Print Friendly & PDF

Makes a Printer Friendly & PDF version of any webpage. Removes navigation, ads, and junk. Formats the page for print so you save paper and ink. Good for the environment and your wallet.

#22, Tab Auto Refresh

Alex

Automatically refresh tabs based on custom time intervals

#23, Adblock for Youtube™

Adblock Systems

Popular Adblock for Youtube™ Extension: Removes the video ads from Youtube™. Thanks to all AdBlock supporters!

#24, YouTube Converter Button

A Koi

Free YouTube Converter Button allows you to save YouTube video and audio files just in 1 click

#25, IBM Aspera Connect

IBM Aspera

This add-on enables the use of IBM Aspera Connect with Firefox. This add-on requires the IBM Aspera Connect application, version 3.9.0 or newer. IMPORTANT: If you encounter an error "Download failed. Please check your connection", update Firefox.