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

Log in

9,477 extensions found in Web Development

Filter results
Search results
  • Get Thumbnail to video YouTube

    Get Thumbnail to video YouTube

    Make thumbnail previews or images for video from YouTube. Only one mouse click and you get a list of links to thumbnails with the available resolutions to this video!

    AKapaceb

    27 users

  • FoxyPGP

    FoxyPGP

    PGP integration for web browsers

    FoxRefire

    27 users

  • HackerCookies - Cookie Editor

    HackerCookies - Cookie Editor

    A minimal, professional cookie editor with dark hacker-style theme for power users.

    Dheelep N

    27 users

  • LeetCode format

    LeetCode format

    Adds Format code button on leetcode to format the code using Prettier code formatter

    Madhur Ahuja

    27 users

  • mRequestControl

    mRequestControl

    mRequestControl is a Firefox Plugin which lets you manipulate the responses of HTTP requests.

    mahe

    27 users

  • BrowserOffice :: Web Rulers

    BrowserOffice :: Web Rulers

    Highly customizable interactive rulers for measuring HTML elements

    BrowserOffice

    27 users

  • Color Picker

    Color Picker

    color picker tool.

    MysteriousImmature

    27 users

  • Transcript GPT

    Transcript GPT

    Copy raw conversation text from ChatGPT conversations.

    thereisnodevhere

    27 users

  • diffs.dev

    diffs.dev

    Adds a button to open diffs in the diffs.dev diff viewer.

    Jason Penilla

    27 users

  • Alt to title

    Alt to title

    Copies images alt attributes to their title, so everyone can see the alt text while hovering the image

    Marc Brillault

    27 users

  • Broken Resources Finder

    Broken Resources Finder

    The scope of the Broken Resources Finder WebExtension is to detect unavailable web resources like images or stylesheets by scanning the currently visited website and its embedded stylesheets.

    Bastian Dupps

    27 users

  • Diff HTTP

    Diff HTTP

    Diff the network traffic in real-time to observe the URLs variant over time.

    limkokhole

    27 users

  • Find Font

    Find Font

    Identifies the font from selected text and lets to download it

    Keepdev

    27 users

  • Whatsapp Number Extractor

    Whatsapp Number Extractor

    Collect phone numbers from group members and download them as a CSV file.

    AyberkAkıncı

    27 users

  • DITM

    DITM

    DITM: Developer In The Middle is an extension that allows you to modify the web server's response in place, to investigate the issues on web site.

    arai_a

    27 users

  • Zen Copy Tab URL

    Zen Copy Tab URL

    Copies the URL of the active tab to the clipboard, provides a copy URL option in the context menu on Zen Browser.

    echojhawke

    27 users

  • TechsFound

    TechsFound

    Find Running Technologies on Website

    Techsfound

    27 users

  • Fake Info Generator

    Fake Info Generator

    Generate fake information like Cpf, Cnpj and creditcard to tests purpose.

    diegobiagi

    27 users

  • SOCKS5 Proxy Control for Firefox

    SOCKS5 Proxy Control for Firefox

    Fácil activación y desactivación de un proxy SOCKS5.

    w0x7ce

    27 users

  • zBReviewBoard

    zBReviewBoard

    Enables screenshots for zipBoard

    ZipBoard

    27 users

  • Git Harvest

    Git Harvest

    Provides a Harvest (https://www.getharvest.com/) time tracking widget in Gitlab (https://gitlab.com) and Github (https://github.com) issues. Works with the hosted services out of the box. Self hosted URLs can be added to the settings.

    andyg5000

    27 users

  • Morqana auto refresh

    Morqana auto refresh

    Simple and reliable auto-refresh extension for Firefox.

    saleembey

    27 users

  • Newtube (YoutubeStyleCustomizer)

    Newtube (YoutubeStyleCustomizer)

    A tool for YoutTube that have a lot customizable and easy to use. You can use it by not have to know about code.

    AzPepoze

    27 users

  • Github1s Extension

    Github1s Extension

    Open github repository in VSCode with Github1s

    imDarkempire

    27 users

  • To do list

    To do list

    Todo-list to crush your daily goals

    Deepak Agrawal

    26 users