Mozilla Firefox Plugins, Add-ons and extension Page 41 of 70

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  1. WebRTC is a communication protocol that relies on JavaScript that can leak your actual IP address from behind your VPN, by default. This addon fixes that, making VPNs more effective [1].

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Firefox
    2 alternatives
  2. Chrome highlighter that quickly and easily puts your highlights into Roam format for easy pasting into your notes. This Highlighter extension is meant for use with the Roam Research note taking application (but can be used for other purposes as well).

    • FreeOpen Source
    • Google Chrome
    • Firefox
    Roam-highlighter screenshot 1
    4 alternatives
  3. OmniSidebar icon
     3 likes

    This add-on for Firefox provides a few options to make the sidebar more accessible and customize it.

    • Discontinued
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Firefox
    OmniSidebar screenshot 1
    3 alternatives
  4. Black Menu for Google gives you quick access to your favorite Google services with a convenient drop-down menu that lets you use Search, Google+, Translate, and many others without leaving the page you’re on.

    • FreeProprietary
    • Chrome OS
    • Google Chrome
    • Opera
    • Firefox
    Black Menu for Google screenshot 1
  5. Context Highlight is a Firefox extension that allows you to highlight all instances (within a webpage) of a word, several words, or a phrase that you currently have selected. Right click anywhere on the page and choose "Clear Highlighting" to reset the page.

    • Discontinued
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Waterfox
    • Pale Moon
    • Firefox
    Simply select the text you want, right click and choose "Highlight Word".
    6 alternatives
  6.  3 likes

    Browser extension to display GitHub code in tree format. Useful for developers who frequently read source in GitHub and do not want to download or checkout too many repositories. Features:Easy-to-navigate code tree like IDEs, Fast browsing with pjax, Support of private...

    • PaidProprietary
    • Online
    • Google Chrome
    • Safari
    • Firefox
    3 alternatives
  7. Drovio icon
     4 likes

    With Drovio, you can invite who you want on your screen, they all get their own mouse cursor appearing on it and can interact with your apps in real time, making you feel you are no more alone on your desktop!

    Drovio screenshot 1
    103 alternatives
  8. This provides features to handle multiple tabs at once, for example, close them, reload them, and so on. When you press the mouse button and dragging over tabs, they will be selected. (Note: The tab will be just moved, if you move the mouse quickly.

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Firefox
    Selecting tabs and choosing command.
    1 alternatives
  9. Categorize, mix, match and mingle all your add-ons in one slick spot built into your browser. Migrate collections from machine to machine, ping your friends with top recommendations, and subscribe to collections you admire, so you'll hear when they grow.

    • Discontinued
    • FreeProprietary
    • Mac
    • Windows
    • Linux
    • Android
    • Firefox
    Collections view in the Add-ons Manager
    1 alternatives
  10. Squire is an HTML5 rich text editor, which provides powerful cross-browser normalisation, whilst being supremely lightweight and flexible. It is built for the present and the future, and as such does not support truly ancient browsers.

    • Text Editor
    • FreeOpen Source
    • Self-Hosted
    • Internet Explorer
    • Safari
    • Opera
    • Chromium
    • Firefox
    22 alternatives
  11. DisCloud icon
     1 like

    We are a container-based cloud platform that was born with the desire to provide easy, free and quality hosting for Discord Bots, and websites.

    • FreemiumProprietary
    • Online
    • Self-Hosted
    • Discord
    • Google Chrome
    • Safari
    • Software as a Service (SaaS)
    • Firefox
    DisCloud Home Page
  12. ForceHTTPS icon
     5 likes

    As wireless networks proliferate, web browsers operate in an increasingly hostile network environment. The HTTPS protocol has the potential to protect web users from network attackers, but real-world deployments must cope with misconfigured servers, causing imperfect web sites...

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Firefox
    8 alternatives
  13. X.gd icon
     1 like

    X.gd is a service that transforms long URLs into short ones. Anyone can use it instantly and simply without membership registration.

    • URL Shortener
    • FreeProprietary
    • Online
    • Google Chrome
    • Mozilla Firefox
    X.gd screenshot 1
    50 alternatives
  14. Quest Portal icon
     6 likes

    Quest Portal is the most powerful virtual tabletop (VTT) for playing TTRPGs on desktop and mobile devices. Quest Portal offers a seamless blend of innovative features, allowing you to dive into thrilling adventures with friends.

    • Virtual Tabletop
    • FreeProprietary
    • Online
    • Android
    • iPhone
    • Google Chrome
    • Safari
    • Firefox
    Mobile Character Sheets for Call of Cthulhu
    14 alternatives
  15. CineLens icon
     1 like

    See cast, music, other works, trailers and more of your favorite Netflix shows and actors.

    • FreeProprietary
    • Google Chrome
    • Mozilla Firefox
    CineLens screenshot 1
    50 alternatives
  16. ActionAlly icon
     5 likes

    Use pomodoro-style work sessions to focus for specific periods of time.

    The remaining time in your session is subtly displayed in the menubar of OSX.

    ActionAlly can even block your most distracting sites just while in your session.

    Throughout the day, you can track how many se.

    ActionAlly screenshot 1
    33 alternatives
  17. Displays a country flag depicting the location of the current website's server. Using an offline database for arbitrary IP address to ISO country code. And provides utilities functions in right-click menu on button and also on webpage.

    • FreeOpen Source
    • Windows
    • Linux
    • Google Chrome
    • Opera
    • Firefox
    Country Flags & IP Whois screenshot 1
    6 alternatives
  18. Passman icon
     4 likes

    Open Source Password Manager. Passman allows you to host your passwords and credentials on your own Nextcloud or ownCloud instance. The encryption is done on the client and server side with AES256 bit encryption.

    • Password Manager
    • FreeOpen Source
    • Online
    • Android
    • Chrome OS
    • Google Chrome
    • Nextcloud
    • ownCloud
    • Firefox
    Passman screenshot 1
    164 alternatives