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

Log in

6,994 extensions found in Web Development

Filter results
Search results
  • DataScraper

    DataScraper

    Extension for FF and Chrome to extract data from web pages to csv.

    Rakot

    1,369 users

  • SVG Export

    SVG Export

    Download SVGs from websites as SVGs, PNGs or JPEGs

    delanebob

    1,367 users

  • Swagger UI

    Swagger UI

    Swagger-UI for Firefox

    Steven Tappert

    1,358 users

  • Page Hacker

    Page Hacker

    Edit in Firefox the page displayed in any tab, with formatting tools.

    nico@nc

    1,344 users

  • Multiple Search and Highlight

    Multiple Search and Highlight

    Highlight multiple words separated by comma, space or arbitrary separator with regular expression support

    Brian

    1,340 users

  • Ace Script

    Ace Script

    User Script Manager with the support of Ace Stream technologies

    Ace Stream

    1,330 users

  • JSON-handle

    JSON-handle

    A JSON text formater tool .

    stonepurple

    1,316 users

  • Word Counter

    Word Counter

    A lite tool for counting characters and words via context-menu

    Mark Lumnert

    1,302 users

  • AI Code Finder & Alerts for Papers: CatalyzeX

    AI Code Finder & Alerts for Papers: CatalyzeX

    🧑‍💻 Get implementation code for research papers directly on Google Search, ArXiv, Scholar, Twitter, Github, PubMed, IEEE, and more

    CatalyzeX

    1,292 users

  • 🚀 Free YouTube: Обходите Блокировки

    🚀 Free YouTube: Обходите Блокировки

    Free YouTube — это расширение для браузера, которое решает вопросы, как обойти блокировку YouTube, и помогает ускорить его работу. Независимо от того, где вы находитесь, этот инструмент обеспечит стабильный доступ к платформе и улучшит её производите

    Free Founder

    1,290 users

  • Spector.js

    Spector.js

    Easily explore and debug any WebGL context.

    BabylonJS

    1,289 users

  • GraphQL DevTools

    GraphQL DevTools

    Developer tools panel for GraphQL development

    Francesco De Stefano

    1,287 users

  • Free OpenVPN Server Finder

    Free OpenVPN Server Finder

    Display up-to-date list of public OpenVPN servers provided by VPN Gate (University of Tsukuba)

    Andy Portmen

    1,270 users

  • SEO Site Tools, Site Analysis

    SEO Site Tools, Site Analysis

    One-click SEO extension. Quick access to SEO analysis. Features: website indexed pages, backlinks, Alexa, IP, SEO stats and tools.

    SEO Site Tools

    1,257 users

  • Talisman Wallet

    Talisman Wallet

    Talisman is a Polkadot wallet that unlocks a new world of multichain web3 applications in the Paraverse.

    Talisman

    1,241 users

  • Debug CSS

    Debug CSS

    Adds outline to all elements on the page to show the culprit element which is changing desired layout hit `Alt+Shift+C ` key to toggle the extension

    Pranay Joshi

    1,231 users

  • Adblock For Youtube

    Adblock For Youtube

    Adblock For Youtube & Auto Ad Skip It is auto ad skip for youtube, ad blocker, hides ad banner in youtube home screen.

    Patricia Fisher

    1,224 users

  • 谷歌翻译-划词翻译

    谷歌翻译-划词翻译

    一站式划词 / 截图 / 网页全文 / 音视频翻译扩展，支持谷歌、DeepL、百度、腾讯等 8 个国内外主流翻译服务，且均可用于网页翻译。能在 PDF 里使用。

    CW

    1,223 users

  • React Context DevTool

    React Context DevTool

    React Context DevTool is a debugging tool for React Context and useReducer API.

    Deep Patel

    1,222 users

  • JWT Debugger

    JWT Debugger

    The JWT.io debugger as a Web Extension

    JWT.io

    1,217 users

  • Copycat

    Copycat

    Copy content from web powerful than ever before.

    BlackGlory

    1,214 users

  • Ember Inspector

    Ember Inspector

    Tool for debugging Ember applications.

    Ember.js

    1,209 users

  • app.telemetry Page Speed Monitor

    app.telemetry Page Speed Monitor

    Get the page load times of any web page! app.telemetry Page Speed Monitor shows offset and duration of each step during the page load based on W3C navigation timing.

    app.telemetry

    1,207 users

  • AInspector for WCAG Accessibility Evaluation

    AInspector for WCAG Accessibility Evaluation

    Inspects web pages for features and issues related to WCAG 2.2 level A and AA requirements for making web pages more accessible to people with disabilities using web accessibility standards, including WCAG, ARIA and ARIA in HTML specifications.

    Jon Gunderson

    1,188 users

  • wxIF

    wxIF

    View the EXIF/IPTC/XMP metadata for images. WebExtensions port of the FxIF add-on.

    Garf

    1,185 users