My Firefox Add-ons

  • Mailvelope

    Free Mac Windows Linux Chrome OS Microsoft Edge ... Chrome Firefox Website

    Mailvelope is a browser extension that allows to exchange encrypted emails following the OpenPGP encryption standard.

    Mailvelope integrates directly into the Webmail user interface, it's elements are unintrusive and easy to use in your normal workflow.

    It comes preconfigured for major Webmail provider:

    Mailvelope can easily be configured to work with other Webmail providers.


    Mailvelope icon
  • ClearURLs

    Free Mac Windows Linux Firefox Website

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

    Many websites use tracking elements in the URL (e.g. ) to mark your online activity. All that tracking code is not necessary for a website to be displayed or work correctly and can therefore be removed—that is exactly what ClearURLs does.

    Another common example are Amazon URLs. If you search for a product on Amazon you will see a very long URL, such as:ÅMÅŽÕÑ&keywords=tea&pd_rd_i=exampleProduct&pd_rd_r=8d39e4cd-1e4f-43db-b6e7-72e969a84aa5&pd_rd_w=1pcKM&pd_rd_wg=hYrNl&pf_rd_p=50bbfd25-5ef7-41a2-68d6-74d854b30e30&pf_rd_r=0GMWD0YYKA7XFGX55ADP&qid=1517757263&rnid=2914120011

    Indeed most of the above URL is tracking code. Once ClearURLs has cleaned the address, it will look like this:

    Why use this extension as opposed to similar ones?
    Most other “link cleaners” employ about a dozen rules when looking for tracking parameters to remove. ClearURLs utilizes over 130 rules, so its capabilities are more comprehensive.
    And ClearURLs is open source, so everyone can join in to the project and/or can check the source code to error or malicious code.

    What do we collect?
    This extension protects and respects your privacy. We do not—and will never—collect any of your usage data.

    What do I do if I have trouble?
    Visit our GitLab page or check out our wiki.

    Write us...
    If have any suggestions or complaints, please contact us on GitLab.


    ClearURLs icon
  • Search by Image

    Free Mac Windows Linux Android Microsoft Edge ... Chrome Opera Firefox Website

    A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.


    Search by Image icon
  • DownThemAll

    Free Mac Windows Linux BSD Chrome ... Pale Moon Opera Firefox Website

    Browser extension that lets you download all of the links and images on a website.


    DownThemAll icon
  • Bitwarden

    Freemium Mac Windows Linux Web Android ... iPhone Android Tablet iPad Self-Hosted Microsoft Edge Vivaldi Browser Chrome Microsoft SQL Server Tor Browser Bundle Safari Cloudron Opera Mono Brave Firefox Website

    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.


    Bitwarden icon
  • uBlock Origin

    Free Web Android Microsoft Edge Vivaldi Browser Chrome ... Pale Moon Thunderbird Opera Chromium Firefox Website

    Popular and efficient blocker for Chromium, Chrome, Edge, Firefox (desktop and Android), Opera, Thunderbird. Fast and lean.


    uBlock Origin icon
  • Facebook Container

    Free Web Facebook Firefox Website

    This extension helps you control more of your web activity from Facebook by isolating your identity into a separate container.


    Facebook Container icon
  • HTTPS Everywhere

    Free Web Vivaldi Browser Chrome Yandex.Browser Opera ... Chromium Firefox Website

    HTTPS Everywhere is a browser extension produced as a collaboration between The Tor Project and the Electronic Frontier Foundation. It encrypts your communications with a number of major websites.

    Many sites on the web offer some limited support for encryption over HTTPS, but make it difficult to use. For instance, they may default to unencrypted HTTP, or fill encrypted pages with links that go back to the unencrypted site.

    The HTTPS Everywhere extension fixes these problems by rewriting all requests to these sites to HTTPS.

    HTTPS Everywhere can protect you only when you're using sites that support HTTPS and for which HTTPS Everywhere includes rules.


    HTTPS Everywhere icon
  • LanguageTool

    Freemium Mac Windows Linux Web Android ... Microsoft Edge Chrome Microsoft Office Outlook SDL TRADOS Safari Visual Studio Code Microsoft Office Word Eclipse TinyMCE TeXstudio Google Drive - Docs Thunderbird Vim OmegaT Sublime Text GNU Emacs Opera Fidus Writer LyX LibreOffice <oXygen/> XML Editor Apache OpenOffice Firefox Website

    Free proofreading tool for Small LibreOffice iconLibreOffice, Small Apache OpenOffice iconApache OpenOffice, Small Microsoft Word iconMicrosoft Word, Small Ulysses iconUlysses, Small Mozilla Firefox iconMozilla Firefox, Small Microsoft Edge iconMicrosoft Edge and Small Google Chrome iconGoogle Chrome. Also available as a standalone application. Supports about 20 languages (on different levels) and allows customization.

    Free - 20,000 characters per check
    • Thousands of patterns for finding errors in English, German, French, ...

    Premium - 40,000 characters per check
    • Thousands of patterns for finding errors in English, German, French, ...
    • Add-on for Microsoft Word (more...) - no character limit
    • Detection of wrong gender in salutation (German only)
    • Additional word pairs for statistical detection of typos for English, German, and French
    • Detection of incorrect checksums in ISBN and IBAN numbers
    • Detection of more than 2500 additional errors for English, German, French, and Dutch


    LanguageTool icon
  • LeechBlock

    Free Mac Windows Linux Chrome Firefox Website

    LeechBlock is an extension for Firefox and Chrome that allows users to block time-wasting sites.


    LeechBlock icon
  • Tabliss

    Free Web Chrome Chromium Firefox Website

    A beautiful new tab page with many customisable backgrounds and widgets. See stunning new landscapes and photos in every new tab.


    Tabliss icon
  • Dark Reader

    Free Mac Windows Linux Chrome Safari ... Thunderbird Firefox Website

    Reduce eye strain in your browser with this extension that provides a dark theme for browsing.


    Dark Reader icon
  • Stylus

    Free Mac Windows Linux Chrome Opera ... Firefox Website

    Stylus allows you to easily install themes and skins for many popular sites.

    Redesign your favorite websites with Stylus, an actively developed and community driven userstyles manager. Easily install custom themes from popular online repositories, or create, edit, and manage your own personalized CSS stylesheets.


    • Versatility of theme installation options. Stylus supports installs from popular online repositories. Additionally, styles can now also be installed from .user.css or .user.styl URLs (see Usercss format documentation in our github wiki).
    • A backup feature for your entire database of installed styles which is compatible with other userstyles managers.
    • An intuitive and configurable automatic update function for installed styles.
    • A highly customizable UI, including theming, optional layouts, icon and badge color choices, along with many other tweaks.
    • Two different optional code validators with user configurable rules.


    Stylus icon
  • UASwitcher

    Free Mac Windows Linux Firefox Website

    Easily pose as another browser by changing the User-Agent header.*

    Pretending to be a different browser can be useful in a number of different situations:

    • Some web pages require you to log in or buy a subscription to view their content, but give full read access to search engines.
    • Some web pages determine whether you're using a mobile or desktop browser based on your user-agent.
    • Some web pages require you to use a specific browser to access their site.
    • And potentially more…

    Note that your browser will not magically morph into a different piece of software just because it's pretending to be some other software. If a web site locks you out because your browser does not support a feature they require then changing the User-Agent will not make any difference.

    • Also changes navigator.userAgent, as well generating convincing values for several of the other navigator.* properties.

    – Translating “User-Agent Switcher” to a new language
    Any help in translating this extension is greatly appreciated! To do so, simply visit our project on the WebLate hosted instance, create an account and either select an existing language or add a new one to get going. Thanks for helping out!

    (Alternatively you may submit a merge request on GitLab with the updated translation files or send me the translations using the “Support E-mail”-Address.)


    UASwitcher icon

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