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

Log in

14,056 extensions found in Web Development

Filter results
Search results
  • Twitter Video Downloader MP3 MP4

    Twitter Video Downloader MP3 MP4

    New Firefox Extension Twitter Video Downloader MP3 MP4 let you easy download any content from Twitter in few steps. Get any Video from Twitter and Download it in MP3, MP4, M4A and other best quality formats. Download video from Twitter TT with FF.

    Youzik YouTube MP3 Converter

    184 users

  • Switch Direction

    Switch Direction

    Switch Direction in edits, useful for mixed RTL and LTR texts editing.

    ebraminio

    184 users

  • Kahuna, the IndexedDB-Manager

    Kahuna, the IndexedDB-Manager

    Browse, manage and edit IndexedDB databases.

    Hummmingme

    183 users

  • Hired Experts Search Policy

    Hired Experts Search Policy

    Hired Experts Search Policy Network

    Yonderi Diaz Rivera

    183 users

  • Skip Ads

    Skip Ads

    Skip all annoying ads

    I Am Your Fear

    182 users

  • Regex Search & Replace

    Regex Search & Replace

    Regex: T ultimate Regex search ⭐️ Simply use Regex on any page with familiar Ctrl+F visuals. ✓ Ctrl+Shift+F search field ✓ Regex query searching ✓ Permanently marking up or replacing anything. ✓ Open Source

    code-for-charity

    182 users

  • xStyle

    xStyle

    Restyle the web with xStyle, a user styles manager. With xStyle you can install themes & skins for many sites and create your own.

    泷涯

    182 users

  • ChatGPT Token Counter

    ChatGPT Token Counter

    Count tokens in real time on chatgpt conversation

    Burak Unver

    181 users

  • MDN Search

    MDN Search

    To use, type 'mdn' plus your search term into the url bar. Works for JavaScript and CSS reference articles.

    Bryan Clark

    181 users

  • KOSHIAN メール欄を表示

    KOSHIAN メール欄を表示

    メール欄を表示します

    Pachira

    181 users

  • Word Editor

    Word Editor

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

    keller

    181 users

  • URL Params Editor

    URL Params Editor

    This is a tool for web developers. It makes editing URL parameters for long URLs much easier. You can use this tool to view each URL param, add new or delete existing ones.

    Z. W.

    180 users

  • Fix Claude's Enter Key

    Fix Claude's Enter Key

    Replaces Enter with Shift+Enter on claude.ai, so that Enter produces a new line. In order to submit a query to the chat, one presses Ctrl+Enter instead.

    Chi Williams

    180 users

  • NetSuite Toolbox

    NetSuite Toolbox

    Several tools to work better with netsuite. For more informations: https://github.com/vinikira/netsuite-toolbox/blob/master/README.md

    Vinícius Simões

    180 users

  • DataLayer Monitor

    DataLayer Monitor

    Logs all dataLayer.push and gtag() events to the console for debugging purposes.

    David Bethlen

    180 users

  • New Hackbar

    New Hackbar

    A sitebar that helps pentesters to perform manual web security testing inside their browser. This addon is written in webextension and alternatives to the XUL version of original Hackbar.

    mxcx

    179 users

  • Flip Video Extension

    Flip Video Extension

    Flip any video on a webpage horizontally with a single click.

    xTeem_Fr0sTy

    179 users

  • Simple JavaScript Injector

    Simple JavaScript Injector

    This addon creates a small popup that lets you paste some JS code and inject it into the page you are currently seeing.

    joeperpetua

    178 users

  • Edit

    Edit

    Format Text, Replace, Insert HTML, BBCode, Markdown & Custom Texts

    erosman

    178 users

  • ViewCached

    ViewCached

    Checks the cached version of the site on ViewCached.com

    Giant Anchovy Solutions

    178 users

  • Browser History Export

    Browser History Export

    Export your browser history in an safe format.

    Dries Depoorter

    177 users

  • showModalDialog Shim

    showModalDialog Shim

    showModalDialog shim rewrites deprecated showModalDialog() to window.open() function so it works in newer browsers! Useful for legacy enterprise web applications Ported from chrome version at https://github.com/chuckhendo/showModalDialog-shim

    Michael

    177 users

  • Webpage to Excel and PDF

    Webpage to Excel and PDF

    convert webpages to Excel and PDF formats

    digitaldavid

    177 users

  • Canonical

    Canonical

    Allows you to quickly navigate to or copy the canonical version of the URL you're on, if available.

    Web Guy

    177 users

  • Postwoman-ufo Browser Extension

    Postwoman-ufo Browser Extension

    为使用Postwoman UFO Web应用程序提供更好的体验，顺畅的在 postwoman.com.cn 和 postdata.cn WEB应用下访问localhost应用内WEB API，请访问 (https://postwoman.com.cn)

    chenqingzi

    177 users