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

Log in

7,486 extensions found in Web Development

Filter results
Search results
  • Xdebug Session Cookie

    Xdebug Session Cookie

    This addon is for PHP developers that use tools with XDEBUG support.

    Kudlaty

    171 users

  • MJsonViewer

    MJsonViewer

    Yet, just another json content viewer plugin for Firefox. Before using, you should go to the "about:config" page and toggle the "devtools.jsonview.enabled" to false first.

    D0n9X1n

    171 users

  • Image ALT

    Image ALT

    Check all image elements have an ALT attribute either empty for decoration or a accessible name.

    Deafinitive

    170 users

  • Word Editor

    Word Editor

    A free & easy-to-use word editor extension for your browser.

    keller

    170 users

  • Knockoutjs context

    Knockoutjs context

    Shows the knockout context & data for the selected dom node in a sidebar of the elements pane.

    Tim Stuyckens

    169 users

  • AngularScope

    AngularScope

    An extension to inspect the scope AngularJS 1.x scope associated to a DOM node. This is NOT an official extension from the AngularJS team.

    Darathor

    169 users

  • Restfox CORS Helper

    Restfox CORS Helper

    Help bypass CORS when making requests from Restfox

    Artelin

    168 users

  • LocaProxy Toolbar

    LocaProxy Toolbar

    LocaProxy Toolbar is a free proxy manager and switcher for Firefox.

    LocaProxy

    166 users

  • Bluesky - Cleanup Usernames

    Bluesky - Cleanup Usernames

    cleans all usernames of their extention on Bluesky

    Greendata

    166 users

  • Selection Highlighter

    Selection Highlighter

    Highlight occurrences of selected text, with or without a keypress.

    neaumusic

    166 users

  • Split-Screen Browser Tool

    Split-Screen Browser Tool

    Easily split your browser window to view multiple websites side by side.

    Reginalds

    165 users

  • Github Download Button

    Github Download Button

    Adds a download button on Github files

    Grooby

    164 users

  • OptiSearch

    OptiSearch

    Affichez les réponses ChatGPT, StackOverflow, Wikipedia, etc. à côté des résultats de recherche Google !

    OptiSearch

    163 users

  • Formlet

    Formlet

    Saving form data to bookmarklets

    jusuff

    163 users

  • Cookie Tab Viewer

    Cookie Tab Viewer

    Get cookies of the current tab.

    Storrito

    163 users

  • LiveGamers.pl - Dodatek

    LiveGamers.pl - Dodatek

    Rozszerzenie umożliwiające poprawne odtwarzanie video w serwisach LiveGamers.pl.

    livegamers

    162 users

  • Codeforces Rating-Based Heatmap

    Codeforces Rating-Based Heatmap

    Displays a rating-based problem-solving heatmap on Codeforces profile pages.

    Gopikrishna

    162 users

  • form-info

    form-info

    Adds a form information panel to the developer tools.

    Atsawin

    162 users

  • Gimli Tailwind

    Gimli Tailwind

    A DevTools extension enabling smart tools for Tailwind CSS.

    joakim

    162 users

  • Monochromer

    Monochromer

    This extension makes web site monochrome.

    xia_sava

    162 users

  • MultiPass

    MultiPass

    This extension automatically send credentials for HTTP-Authentication based on a list of passwords associated to a regular expression.

    Gilles Crettenand

    161 users

  • Speed Test Internet

    Speed Test Internet

    Check internet download/upload speed

    Firefox addon Free

    160 users

  • Copy image as Base64

    Copy image as Base64

    Allows you to copy an image to clipboard in a Base64 format data URI

    Syd Lambert

    159 users

  • Download Reddit™ Videos

    Download Reddit™ Videos

    RedditVideodl.com allows you to download Reddit videos with Sound in HD Formats.

    redditvideodl.com

    159 users

  • Sound Meter (Noise & Decibel)

    Sound Meter (Noise & Decibel)

    Measure the surrounding sound (dB) and noise with your computer's microphone!

    Loori

    158 users