To use these add-ons, you'll need to download Firefox.

Log in

9,392 extensions found in Privacy & Security

Filter results
Search results
  • Qwant Search (Unofficial)

    Qwant Search (Unofficial)

    Unofficial, open-source web extension that adds qwant.com as a search engine to the Firefox browser. Please review Qwant's privacy policy: https://about.qwant.com/legal/privacy/

    nitrohorse

    121 users

  • DOM Destroyer: delete anything on any web page

    DOM Destroyer: delete anything on any web page

    Delete anything on a website with a click.

    phil

    121 users

  • Clean Guru- cleaner cache and history

    Clean Guru- cleaner cache and history

    Best way to clean cache and browsing data from Firefox browser!

    Mikhael Robinson

    120 users

  • Unfriend Checker

    Unfriend Checker

    The easiest FREE way to check who unfriended you on Facebook! After installing this add-on a new link will be available in Facebook page. You can check your Facebook friends list and will compare results. You can download your list of friends.

    Unfriend Checker

    120 users

  • HeaderTools - Inject and Edit Request Headers

    HeaderTools - Inject and Edit Request Headers

    HeaderTools is a versatile and user-friendly extension designed to provide users the capability to manipulate and inject request headers based on regex domain selectors.

    Darren Anderson

    120 users

  • Systemwalker Desktop Keeper/Navi

    Systemwalker Desktop Keeper/Navi

    Records and controls operations on webpages.

    Fujitsu

    120 users

  • TomatoTomato

    TomatoTomato

    Tomato Tomato is a minimalistic productivity/work-flow management extension. Its concept revolves around working for a set amount of time, then taking a short break before working again. During work sessions, user-specified websites are blocked.

    Kylemrtnz

    119 users

  • Check Wordpress Version

    Check Wordpress Version

    Check what version of WordPress a web page is powered by

    Francesco De Stefano

    119 users

  • FB AIO

    FB AIO

    All-in-one toolbox for manage your Social Media

    Hoang Tran

    119 users

  • YouTube Player AdBlocker

    YouTube Player AdBlocker

    Prevents YouTube page, HTML5 player, and Flash player from displaying ads and banners

    James Fray

    118 users

  • Nextcloud Passwords

    Nextcloud Passwords

    Client for Nextcloud Passwords application.

    wirgen

    117 users

  • HTMLRemover

    HTMLRemover

    Easily Remove HTML elements by clicking them

    MagiKirby

    117 users

  • PeerTubeify

    PeerTubeify

    PeerTubeify allows to redirect between YouTube and PeerTube and across PeerTube instances, automatically or by displaying a link. Don't forget to set your preferences :) PeerTubeify is not affiliated with PeerTube.

    Ealhad

    116 users

  • ETag Stoppa

    ETag Stoppa

    Prevents Firefox from storing entity tags by removing ETag response headers unconditionally and without exceptions. Minimalism at its fullest.

    claustromaniac

    115 users

  • NotExp

    NotExp

    This extension converts OneNote notes to Xournal++ and RNote notes with only a few clicks required.

    nico9889

    114 users

  • IIT 3DA CA WEB Client

    IIT 3DA CA WEB Client

    Extension for signing documents in browser

    SIT LLC

    114 users

  • Certificate Trust

    Certificate Trust

    This add-on shows with a colored icon, whether the SSL/TLS certificate currently used by the website for is classified as trustworthy by Mozilla or only by the local computer. Helps to identify proxies.

    devmni

    114 users

  • Extension Inspector

    Extension Inspector

    Inspect Firefox and Chrome extensions with tim-we.github.io/web-ext-inspector

    Tim Weißenfels

    114 users

  • Site Wipe

    Site Wipe

    Clear cookies, cache, and storage—just for the current site.

    Drowzy Dev

    114 users

  • What is my IP address

    What is my IP address

    What is my IP app helps you to recognize full network information in one click

    Алексей

    113 users

  • CookieMaster

    CookieMaster

    Allows user control of whether cookies may be set, on a per-domain basis.

    Craig Miskell

    113 users

  • Google search link fix Mod

    Google search link fix Mod

    Prevents Google and Yandex search pages from modifying search result links when you click them.

    mig

    113 users

  • adam:ONE® assist

    adam:ONE® assist

    This extension makes it easy to request access to websites blocked by adam:ONE®.

    Adam Networks

    113 users

  • Page Cleaner

    Page Cleaner

    Makes pages look cleaner, by blocking ads and removing unnecessary elements.

    Acidicpotato

    112 users

  • Web Design Pirate for DevTools

    Web Design Pirate for DevTools

    Fast and easy way to copy web components, HTML widgets and parts of website design.

    Dalimil Hajek

    112 users