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7,236 extensions found in Web Development

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  • MetaMask Legacy Web3

    MetaMask Legacy Web3

    Adds MetaMask's legacy window.web3 API to your browser

    danfinlay

    1,566 users

  • SVG Export

    SVG Export

    Download SVGs from websites as SVGs, PNGs or JPEGs

    delanebob

    1,562 users

  • WindowSizer

    WindowSizer

    Quickly resize the window to one of your favorite sizes

    Dr. Cheap

    1,542 users

  • Siteimprove Accessibility Checker

    Siteimprove Accessibility Checker

    Jumpstart your web accessibility efforts directly in Firefox. Is your web page accessible for everyone? Assess the accessibility of your web pages conveniently in Mozilla Firefox browser with the Siteimprove Accessibility Checker.

    Siteimprove

    1,531 users

  • Open Graph Preview

    Open Graph Preview

    Shows approximately what users will see if this webpage is shared on websites that uses OG tags to display a preview. Let you detect if no Open Graph Tags are set on your webpage ! The shown preview is inspired from the Facebook one.

    apiaget

    1,526 users

  • Copy URL To Clipboard

    Copy URL To Clipboard

    Copy document URL / link URL to clipboard as HTML, Markdown, Text etc.

    asamuzaK

    1,512 users

  • Web Developer Form Filler

    Web Developer Form Filler

    This extension is used by developers to make it easy to save and fill forms for use in submission testing and validation.

    Eric Busch

    1,497 users

  • Page Edit

    Page Edit

    Make any webpage into a content editable document and modify it via toolbar popup!

    keller

    1,496 users

  • View Background Image

    View Background Image

    Adds "View Background Image" to the context menu.

    foooomio

    1,489 users

  • IndicateTLS

    IndicateTLS

    Displays negotiated SSL/TLS protocol version and additional security information in the address bar

    Jannis Pinter

    1,485 users

  • Penetration Testing Kit

    Penetration Testing Kit

    Attention! This version is no longer supported. Use /firefox/addon/owasp-penetration-testing-kit/ extension instead.

    pentestkit.co.uk

    1,478 users

  • Download with FlashGet

    Download with FlashGet

    when activated, interrupts the built-in download manager to direct links to FlashGet

    Joe Ertaba

    1,469 users

  • HackBar

    HackBar

    A browser extension for Penetration Testing

    0140454

    1,459 users

  • autoClick

    autoClick

    I make clicks... for real. If you play idle/clicker games this one is for you. Just select a key in your keyboard and press it down for the mouse to left-click, and you can it pressed down for all the time you want.

    mmoroca

    1,457 users

  • NoFollow

    NoFollow

    Outlines nofollow links, detect nofollow and noindex meta tags on webpages. Features website filtering and custom CSS outline styles

    Igor Jerosimić

    1,453 users

  • Alpine.js devtools

    Alpine.js devtools

    DevTools extension for debugging Alpine.js applications.

    Hugo

    1,416 users

  • Grids & Rulers

    Grids & Rulers

    Create rulers and grids overlays to help develop your web applications

    Jeremie Patonnier

    1,408 users

  • Dimensions

    Dimensions

    A tool for designers to measure screen dimensions

    Felix Niklas

    1,404 users

  • Swagger UI

    Swagger UI

    Swagger-UI for Firefox

    Steven Tappert

    1,383 users

  • DataScraper

    DataScraper

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

    Rakot

    1,377 users

  • Infy Scroll - A Next Page AutoPager

    Infy Scroll - A Next Page AutoPager

    Add customized infinite scrolling to websites and auto load the next page. Supports the AutoPagerize and InfyScroll Databases.

    Sixcious

    1,377 users

  • Twitter

    Twitter

    Download the images and videos.

    Lim Xiu Quan

    1,375 users

  • Tab2QR

    Tab2QR

    A minimalist browser extension that generates QR codes from your current tab, allows you to edit the encoded content, copy QR code image to clipboard, or download as PNG or SVG files.

    James Shih

    1,371 users

  • Page Hacker

    Page Hacker

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

    nico@nc

    1,356 users

  • Gemini next to Google results

    Gemini next to Google results

    🗨️ Gemini answer alongside Google results.

    OptiSearch

    1,352 users