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

Log in

8,730 extensions found in Web Development

Filter results
Search results
  • Search SIMBAD

    Search SIMBAD

    A minimalistic web browser extension that brings the SIMBAD search functionality to wherever you are in the browser.

    orderfour

    5 users

  • Hreflang Tag Checker V3

    Hreflang Tag Checker V3

    Automatically checks hreflang tags on a page, crawls linked language versions, and verifies correct reciprocal links—ideal for quickly auditing international SEO setups.

    Thomas Czernik

    5 users

  • GTM variables move

    GTM variables move

    Moves User defined variables before built-in variables in GTM variables view. Enabables short cut for saving your work.

    Knapstad

    5 users

  • Pronotheme

    Pronotheme

    Pronotheme vous permet de créer un mode sombre pour le site web Pronote.

    cubix4833

    5 users

  • New Window CSS Editor

    New Window CSS Editor

    Edit CSS in a separate window and apply changes inline

    Alex

    5 users

  • TE DevTools

    TE DevTools

    Browser extension for assets switching.

    Total Expert

    5 users

  • GitHub Streaks

    GitHub Streaks

    Add GitHub streaks back into your browser.

    Brian Steffens

    5 users

  • Dofo Domain Search

    Dofo Domain Search

    There are 30 million domain names for sale. See if any domain name is for sale or available directly into your browser.

    Dofo.com

    5 users

  • Stylerific

    Stylerific

    Stylerific is a plugin that gives users the ability to add custom CSS to their favorite webpages, on a per-domain basis.

    Ron Rider Jr.

    5 users

  • D3Metrics

    D3Metrics

    Checks a website for Google Tag Manager, Google Analytics and Facebook Pixel. If found, it will display the account ID for each platform.

    D3

    5 users

  • Time Machine

    Time Machine

    An extension to slow down or speed up your browser.

    TheLazyCat

    5 users

  • Image Convert and Download

    Image Convert and Download

    Allows to download svg and images in different formats

    Haseebeqx

    5 users

  • DownloadGPT

    DownloadGPT

    Privacy-first add-on that is great for downloading your chats (in HTML format for now) from ChatGPT.com in a safe and secure manner.

    Krishi

    5 users

  • LGTM.app

    LGTM.app

    Say 'Looks good to me' with pictures!

    Yu SERIZAWA

    5 users

  • Dev Mode

    Dev Mode

    A simple helper extension for developers working on localhost environments.

    D7OM

    5 users

  • RestMan Pro

    RestMan Pro

    RESTMan Pro is a browser extension to work on http requests.

    Casino WW88

    5 users

  • 色彩選擇器

    色彩選擇器

    方便的色彩選擇器

    coastum

    5 users

  • unsight

    unsight

    Detect duplicate GitHub issues, areas of concern and more across related repositories

    danielroe

    5 users

  • Cloudflare Magic Linker

    Cloudflare Magic Linker

    Create magic deep links for the Cloudflare dashboard.

    Mackenly Jones

    5 users

  • SaverHTML

    SaverHTML

    save html pages

    Zokemore

    5 users

  • Github to Stackblitz

    Github to Stackblitz

    This extension add a new button on each repository of Github that allow you to open it in StackBlitz. You will find the new button next the dropdown named "Clone or download"

    Firefox user 14101245

    5 users

  • Pentest Pro

    Pentest Pro

    A complete browser extension for penetration testing with SQLi, XSS, SSRF, and encoding tools.

    Layla

    5 users

  • YouTube: No Shorts, No Community, No Nonsense

    YouTube: No Shorts, No Community, No Nonsense

    Disables different sections for a more enjoyable experience.

    Oh Thomas

    5 users

  • Crypto Currency Converter

    Crypto Currency Converter

    Daily rate crypto and fiat currency converter powered by exchangerate-api.com and api.coingecko.com. Fork of Currency Converter.

    papich

    4 users

  • PR2R

    PR2R

    Adds a button to GitHub Pull Request pages to create a Release from the current Pull Request

    daf

    4 users