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

Log in

12,259 extensions found in Web Development

Filter results
Search results
  • Netmirror Extension

    Netmirror Extension

    Add, modify or remove a header for any request.

    Netmirror

    2,118 users

  • LightSession Pro for ChatGPT

    LightSession Pro for ChatGPT

    Fix slow, laggy ChatGPT tabs in Firefox. Local-only extension that speeds up long conversations by trimming old messages from the page (no data leaves your browser).

    Emil K

    2,118 users

  • Grepper

    Grepper

    The Query & Answer System for the Coder Community

    codegrepper.com

    2,113 users

  • Pesticide

    Pesticide

    This extension inserts the Pesticide CSS into the current page, outlining each element to better see placement on the page.

    Six

    2,076 users

  • Fake Data - A form filler you won't hate

    Fake Data - A form filler you won't hate

    Fill form fields on the fly with fake random data. No configuration needed, just double click on each input you want to fill. Has an autolearn feature for unrecognised fields.

    Hater Apps

    2,067 users

  • FB unseen

    FB unseen

    Blocks the ”seen” feature of the facebook messenger, and your friends will no longer be able to see if you read their messages.

    Horizonsoft

    2,065 users

  • ASBPlayer: Learn with Subs

    ASBPlayer: Learn with Subs

    Language learning subtitle player for streaming platforms like Netflix, YouTube, and more.

    MirSolUu

    2,056 users

  • Resource Override

    Resource Override

    An extension to help you gain full control of any website by redirecting traffic, replacing, editing, or inserting new content.

    Kyle Paulsen

    2,049 users

  • DotGit

    DotGit

    An extension to check if .git is exposed in visited websites.

    davtur

    2,019 users

  • Altair GraphQL Client

    Altair GraphQL Client

    A beautiful feature-rich GraphQL Client for all platforms.

    Samuel

    2,011 users

  • Chat GPT for Google

    Chat GPT for Google

    See the ChatGPT responses right next to your search engine results. https://extensionchatgpt.com/ See our youtube guide: https://www.youtube.com/watch?v=p9it2NCB3_c

    Chat GPT for Google

    1,994 users

  • GraphQL Network Inspector

    GraphQL Network Inspector

    Simple and clean network inspector for GraphQL

    warrenjday

    1,981 users

  • Clockwork

    Clockwork

    php dev tools integrated to your browser

    its

    1,970 users

  • Custom Style Script

    Custom Style Script

    Add custom JavaScript codes or styles to any page.

    Milen

    1,962 users

  • Yandex Wordstat Assistant

    Yandex Wordstat Assistant

    Расширение, позволяющее значительно ускорить сбор фраз с помощью сервиса подбора слов Яндекс (wordstat)

    SEMANTICA

    1,955 users

  • HackBar

    HackBar

    A browser extension for Penetration Testing

    0140454

    1,951 users

  • Link Extractor

    Link Extractor

    Modern Web Extension to extract, parse, and open links from any site or text with optional filters.

    Shane

    1,934 users

  • Copy Selected Tabs to Clipboard

    Copy Selected Tabs to Clipboard

    Provides ability to copy title and URL of selected tabs to the clipboard.

    Piro (piro_or)

    1,916 users

  • LiveReload - Web extension

    LiveReload - Web extension

    Web extension based version of LiveReload. Supports Firefox 57 (Firefox Quantum)

    Todd Wolfson

    1,912 users

  • ICPBravoAccess

    ICPBravoAccess

    ICPBravo Access ICPBrasil and General PKI Extension.

    Scytl

    1,895 users

  • dataslayer

    dataslayer

    Debug and test tag management (Google Tag Manager, Adobe Launch / DTM, Tealium) and analytics (Google Analytics, Adobe Analytics) implementations from within Developer Tools.

    Sean Adams

    1,888 users

  • Locale Switcher

    Locale Switcher

    Lets you quickly switch the browser locale to test localization on your website.

    Locale Switcher

    1,873 users

  • Try XPath

    Try XPath

    This add-on displays the result of evaluating XPath expression or CSS selector.

    larissa9839

    1,868 users

  • ChroPath

    ChroPath

    ChroPath helps to generate and validate selectors like relative xpath, cssSelector etc with iframe support.

    AutonomIQ

    1,865 users

  • Youtube Play All

    Youtube Play All

    Adds a 'Play All' button to YouTube, allowing video playback in Latest, Popular, or Oldest order.

    CatBraaain

    1,857 users