To use Android extensions, you'll need Firefox for Android. To explore Firefox for desktop add-ons, please visit our desktop site.

Log in

387 extensions found in Web Development

Filter results
Search results
  • GitHub Repository Size

    GitHub Repository Size

    Displays the size of a GitHub repository on its homepage

    Pranav Mangal

    11 users

  • Secure Passwords

    Secure Passwords

    Instantly generate robust and unique passwords with a single click.

    Tatami-web

    11 users

  • Domain Age Check

    Domain Age Check

    Domain age checker is a whois tool / extension developed by Cynexium (Umar) for checking any domain's age

    Umar

    11 users

  • Get DNS

    Get DNS

    Get All DNS records.

    devbit.me

    11 users

  • Meta No User-Scalable

    Meta No User-Scalable

    Adds the meta viewport tag only to sites that don't have it, and disables user scalable for all sites.

    Piggy Gaming

    11 users

  • amo-info

    amo-info

    The best extension to show information about AMO and related services.

    William Durand 🌟

    11 users

  • Volume Button Scroll

    Volume Button Scroll

    Use volume buttons to scroll webpages and articles

    user-xfc

    10 users

  • CopyToClip

    CopyToClip

    CopyToClip is allow user to copy codes snippets from Stackoverflow.

    Mohammad Farhan

    10 users

  • Cookie Popup Blocker

    Cookie Popup Blocker

    Automatically blocks cookies and cookie consent popups

    Sumalya Chatterjee

    10 users

  • CloneElement-InstantCSS

    CloneElement-InstantCSS

    Clone a Webpage Elements and Instantly Apply CSS

    JanishPancholi

    10 users

  • Purplemonkey2

    Purplemonkey2

    Just like Violentmonkey, but with more unsafe API.

    gholk

    9 users

  • Insecure Links Highlighter

    Insecure Links Highlighter

    Highlight insecure links such as ‘http://example.org’. Useful for web development and as a very basic heuristic for site security.

    Victor Engmark

    9 users

  • Run JavaScript

    Run JavaScript

    Script injector for JavaScript and CSS!

    datttyt

    9 users

  • Bluesky Moderation Extension

    Bluesky Moderation Extension

    A Firefox extension to assist with moderation on Bluesky, allowing users to block others and manage block lists efficiently. Enhance your Bluesky experience with improved control and security.

    BDRAW

    9 users

  • Dark Mode Cyberpunk

    Dark Mode Cyberpunk

    Apply a dark, cyberpunk-style theme to all websites.

    namideus

    9 users

  • SwaggerAuthenticator

    SwaggerAuthenticator

    Automate API-Key authentication in swagger.

    Indogermane

    9 users

  • My Autofill Extension

    My Autofill Extension

    Autofills VWB form with license verification

    Md Moazzem Hossen

    9 users

  • chromify

    chromify

    Switches User-Agent string to mimic latest Chrome on Android 13 on a Pixel 5 device.

    csalaki

    8 users

  • Get IPs

    Get IPs

    Get Server and Client IPs.

    devbit.me

    8 users

  • Share 2 Archive Webpage Today

    Share 2 Archive Webpage Today

    Publicly archive any website using the archive.today, archive.is, archive.ph service

    Gabriel

    8 users

  • TMGM Link Redirector

    TMGM Link Redirector

    Instantly redirects your current tab to TMGM's Main Site or Portal with one click.

    Developper TMGM

    8 users

  • ImageSlim: Image Resizer

    ImageSlim: Image Resizer

    Instantly resize and optimize images in your browser. Save storage space and improve website loading times with just a few clicks.

    Getinfotoyou

    8 users

  • Tab Session Manager

    Tab Session Manager

    Save and restore the state of windows and tabs. It also supports automatic saving.

    Lwandle

    7 users

  • GitHub Pages 404

    GitHub Pages 404

    Provides links to Owner's Profile and GitHub Repo on a GitHub Pages 404 page.

    Harsh Narayan Jha

    7 users

  • Image compare

    Image compare

    Compare images in quality

    Janghou

    7 users