Useful Firefox Extensions

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worlddestroyerlaromList by worlddestroyerlarom, last updated 2023-03-24
  1. Essential

  2. uBlock Origin icon

    An efficient blocker for Chromium and Firefox. Fast and lean.

    • Ad Blocker
    • FreeOpen Source
    • Microsoft Edge
    • Vivaldi
    • Google Chrome
    • Pale Moon
    • Thunderbird
    • Opera
    • Node.JS
    • Chromium
    • Mozilla Firefox
    • ...
    uBlock Origin screenshot 1
  3. Bitwarden icon

    Bitwarden is the easiest and safest way to store your logins and passwords across all of your devices (iOS, Android, Chrome, Firefox, Opera, Windows, Mac, Linux, and more). Bitwarden is FREE and open source.

    • Password Manager
    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Apple Watch
    • Snapcraft
    • Microsoft Edge
    • Vivaldi
    • Google Chrome
    • Flathub
    • Microsoft SQL Server
    • Tor Browser
    • Safari
    • F-Droid
    • Software as a Service (SaaS)
    • Flatpak
    • Cloudron
    • Opera
    • Chocolatey
    • Mono
    • Brave
    • Mozilla Firefox
    • ...
    Desktop app on macOS
  4. I still don't care about cookies icon

    Community version of the popular extension "I Don't care about cookies" (without Avast)

    • ...
  5. Flagfox icon

    Flagfox is a Firefox extension that displays a flag depicting the location of the current websites server and provides a multitude of tools such as site safety checks, WhoIs, translation, similar sites, validation, URL shortening, and more.

    • FreeProprietary
    • Mac
    • Windows
    • Linux
    • Firefox
    • ...
    Flagfox screenshot 1
  6. Firefox Multi-account Containers icon

    The Firefox Multi-Account Containers extension lets you carve out a separate box for each of your online lives – no more opening a different browser just to check your work email! Here is a quick video showing you how it works.

    • FreeOpen Source
    • Online
    • Firefox
    • ...
    Firefox Multi-account Containers screenshot 1
  7. Facebook Container icon

    Facebook Container works by isolating your Facebook identity into a separate container that makes it harder for Facebook to track your visits to other websites with third-party cookies.

    • ...
    Facebook Container screenshot 1
  8. Dark Reader icon

    This eye-care extension enables night mode creating dark themes for websites on the fly. Dark Reader inverts bright colors making them high contrast and easy to read at night.

    • Dark Mode Enforcer
    • FreeOpen Source
    • iPhone
    • iPad
    • Microsoft Edge
    • Google Chrome
    • Safari
    • Thunderbird
    • Mozilla Firefox
    • ...
    Dark Reader screenshot 1
  9. Search by Image icon

    Search by Image is a extension which enables you to initiate a reverse image search from the right-click context menu or the browser toolbar, and comes with support for more than 30 search engines.

    • Image Search Engine
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Android
    • Microsoft Edge
    • Google Chrome
    • Opera
    • Firefox
    • ...
    Search by Image screenshot 1
  10. LanguageTool icon

    LanguageTool is a free proofreading software compatible with multiple applications like LibreOffice, Microsoft Word, Firefox, and Google Chrome. It supports around 20 languages and can be customized. It has two versions: free and premium.

    • Grammar Checker
    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • iPhone
    • iPad
    • Microsoft Edge
    • Google Chrome
    • Microsoft Office Outlook
    • Safari
    • Visual Studio Code
    • Microsoft Word
    • Eclipse
    • TinyMCE
    • TeXstudio
    • Google Docs
    • Thunderbird
    • Vim
    • OmegaT
    • Sublime Text
    • GNU Emacs
    • Opera
    • Gmail
    • Fidus Writer
    • LyX
    • LibreOffice
    • Apache OpenOffice
    • Mozilla Firefox
    • LibreOffice - Writer
    • ONLYOFFICE
    • ...
    LanguageTool screenshot 1
  11. Simple Translate icon

    WebExtensions for translating text on web pages. Contribute to sienori/simple-translate development by creating an account on GitHub.

    • Translator
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Microsoft Edge
    • Google Chrome
    • Firefox
    • ...
  12. SponsorBlock icon

    SponsorBlock is a browser extension and open API via crowdsource for skipping sponsor segments in YouTube videos. It's open-source. Users submit when a sponsor happens from the extension, and the extension automatically skips sponsors it knows about using a privacy...

    • Ad Blocker
    • FreeOpen Source
    • Online
    • Android
    • iPhone
    • Microsoft Edge
    • Google Chrome
    • Safari
    • Opera
    • Firefox
    • ...
    SponsorBlock screenshot 1
  13. Return YouTube Dislike icon

    Returns ability to see dislike statistics on YouTube.

    • FreeOpen Source
    • Online
    • Google Chrome
    • Firefox
    • ...
    Return YouTube Dislike screenshot 1
  14. Situational/Non-essential

  15. User-Agent Switcher and Manager icon

    "User Agent Switcher and Manager" spoofs browser's User-Agent string. This string is used by web servers to provide content to you. Based on your browser type and operating system, web servers might provide different HTML content (like a different styling or lower...

    • FreeOpen Source
    • Online
    • Google Chrome
    • Opera
    • Firefox
    • ...
    User-Agent Switcher and Manager screenshot 1
  16. ClearURLs icon

    This extension will automatically remove tracking elements from URLs to help protect your privacy when browse through the Internet.

    • ...
    ClearURLs screenshot 1
  17. Firefox Relay icon

    We all make many online accounts, but most of them are linked to 1 or 2 of our email addresses. This means if just one account is hacked or tracked, every other account and its associated data is now also at risk.

    • ...
    Firefox Relay screenshot 1
  18. Raindrop.io icon

    Save Anything from Around the Web, organize with ease, find your content with search, and collaborate.

    • Bookmark Manager
    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Microsoft Edge
    • Vivaldi
    • Google Chrome
    • Safari
    • Yandex Browser
    • Software as a Service (SaaS)
    • Opera
    • Mozilla Firefox
    • ...
    Raindrop.io interface with dark theme selected
  19. Zotero icon

    Zotero is a free, easy-to-use tool to help you collect, organize, share research and cite your research sources directly in your favourite word processor, with 300 MB free online storage.

    • Research Manager
    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • iPhone
    • iPad
    • Microsoft Edge
    • Google Chrome
    • Safari
    • Microsoft Office Word
    • Google Drive - Docs
    • LibreOffice
    • Firefox
    • ...
    Main Interface
  20. Web Archives icon

    Web Archives is a browser extension that enables you to find archived and cached versions of web pages. Searches can be initiated from the context menu and the browser toolbar.

    • FreeOpen Source
    • Microsoft Edge
    • Google Chrome
    • Safari
    • Opera
    • Firefox
    • ...
    Web Archives screenshot 1
  21. Wayback Machine icon

    With the power of the Wayback Machine, you can go back in time to see how a website has changed and evolved through the history of the Web.

    • ...
    Wayback Machine screenshot 1
  22. DownThemAll icon

    DownThemAll (or just dTa) is a powerful yet easy-to-use browser extension for Firefox, Chrome and Opera that adds new advanced download capabilities to your browser. DownThemAll lets you download all the links or images contained in a webpage and much more: you can refine your...

    • Download Manager
    • Free PersonalOpen Source
    • Online
    • Microsoft Edge
    • Google Chrome
    • Pale Moon
    • Opera
    • Firefox
    • ...
    DownThemAll screenshot 1
  23. SingleFile icon

    SingleFile is an extension that helps you to archive a complete page into a single HTML file or HTM-File with Google Chrome and Chromium.

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Google Chrome
    • Firefox
    • ...
    SingleFile is very easy to use
  24. Link Gopher icon

    Link Gopher is a simple extension to extract links from Mozilla Firefox. It extracts all links from web page (including embedded links), sorts them, removes duplicates, and displays them in a new tab for copy and paste into other systems.

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Firefox
    • ...
  25. ColorZilla icon

    ColorZilla is an extension for Mozilla Firefox and the Mozilla Suite.

    It assists web developers and graphic designers with color related tasks - both basic and advanced.

    With ColorZilla you can get a color reading from any point in your browser, quickly adjust this color and pa.

    • FreeProprietary
    • Online
    • Google Chrome
    • Firefox
    • ...
    Eyedropper
  26. WhatFont icon

    WhatFont is a bookmarklet and Chrome extension that makes it easy to find out the fonts used in a webpage.

    • FreeProprietary
    • Mac
    • Windows
    • Linux
    • Google Chrome
    • ...
    WhatFont screenshot 1
  27. GIPHY icon

    GIPHY is the fastest, simplest way to search and share GIFs across all of your favorite social channels.

    • ...
    GIPHY screenshot 1
    GIPHY screenshot 2
    GIPHY screenshot 3
  28. Metastream icon

    Metastream allows you to watch internet videos with friends. It synchronizes media on websites so you can watch together.

    • ...
    Metastream screenshot 1
  29. BetterTTV icon

    Enhances Twitch with new features, emotes, and more.

    • FreeProprietary
    • Microsoft Edge
    • Google Chrome
    • Safari
    • Opera
    • Twitch
    • Firefox
    • ...
    BetterTTV screenshot 1

This list was created by worlddestroyerlarom Feb 18, 2023 and was last updated Mar 24, 2023. The list has 27 apps.

You can create your own lists from our large database of apps either for your own sake or if you want to share some great apps with other people.


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