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

Log in

9,547 extensions found in Web Development

Filter results
Search results
  • SelectorsHub Pro

    SelectorsHub Pro

    xPath plugin to auto generate, write and verify xpath & cssSelector.

    Sanjay Kumar | SelectorsHub Founder

    78 users

  • Get Facebook ID

    Get Facebook ID

    Get Facebook ID for Facebook pages. When the tab is a Facebook page, this tries to extract the ID that is used by the Facebook Graph API.

    Sworn

    78 users

  • BetterXML

    BetterXML

    Powerful XML viewer for Firefox

    eliasbenb

    78 users

  • Subdomain Finder

    Subdomain Finder

    Enumerates subdomains, directories, shows website IP, and checks for robots.txt

    Sumalya Chatterjee

    77 users

  • Burp Proxy Toggler

    Burp Proxy Toggler

    The Burp Proxy Toggler is an extension for BurpSuite designed for ethical hackers and penetration testers. It enhances security assessments with robust interception and analysis capabilities, streamlining workflows and improving application.

    Sourabh Singh

    77 users

  • SERP Snippet Extractor by getindexed.io

    SERP Snippet Extractor by getindexed.io

    Extract Google search results with one click. SERP Snippet Extractor extracts the displayed title, description and URL from the SERP.

    searchanalyzer

    77 users

  • Timestamp Converter

    Timestamp Converter

    Convert timestamps into human readable format or dates into timestamps

    Ceenen

    77 users

  • GPT-Choice

    GPT-Choice

    Allows the user to choose which model to use on chatgpt, instead of forcing GPT-4o for a certain number of messages before moving to GPT-3.5. (ONLY FOR FREE USER)

    Duck Duck OpenAI

    77 users

  • PhotoConvert - Image Converter

    PhotoConvert - Image Converter

    Convert images to WebP, AVIF, JPEG, PNG and more. Optimize your images with quality control for the web and professional use.

    Getinfotoyou

    77 users

  • Baseliner

    Baseliner

    An extension for designers and developers who care about the grid.

    jpedroribeiro

    77 users

  • Fake Filler 2

    Fake Filler 2

    A form filler that fills all inputs on a page with fake/dummy data.

    Jim Hays

    76 users

  • Toggle Document Design Mode (WebExtension)

    Toggle Document Design Mode (WebExtension)

    This addon lets you edit any page! Press Shift+Alt+D to toggle document.designMode = 'on'/'off'. The logo is CC0 from here https://pixabay.com/en/pencil-pen-orange-red-eraser-190586/

    Andrei Petcu

    76 users

  • GitHub Code Folding

    GitHub Code Folding

    Enable code folding when viewing files in GitHub.

    Firefox user 12740747

    76 users

  • vCam

    vCam

    Configure Your Webcam

    Tonmoy Deb

    76 users

  • Linkover – preview link info on hover

    Linkover – preview link info on hover

    Linkover loads link thumbnail, page title, description and favicon, and shows it all in a nice tooltip on link hover.

    emvaized

    76 users

  • SN Utils - Tools for ServiceNow

    SN Utils - Tools for ServiceNow

    Productivity tools for ServiceNow. (Personal work, not affiliated to ServiceNow)

    AZ88

    76 users

  • Lexical Developer Tools

    Lexical Developer Tools

    Adds Lexical debugging tools to the Firefox Developer Tools. It allows you to inspect the Lexical state in the Firefox Developer Tools.

    Lexical

    76 users

  • TikTok Live Comment Fix

    TikTok Live Comment Fix

    Fixes the comment input in TikTok live streams for Firefox

    jorgeloper

    76 users

  • json-content-type-override

    json-content-type-override

    Allow to override any content type containing json to application/json. Can be very useful to override vendor specific content type.

    Clem

    76 users

  • Color Picker Extension Advanced

    Color Picker Extension Advanced

    A feature-rich color picker , You can also customize the background with an uploaded image or a gradient color pattern.

    youssefdev

    75 users

  • TCVS Extension

    TCVS Extension

    Enables secure CORS-compliant communication between Corelation Keystone credit union systems and U.S. Treasury Check Verification

    TTCU Technologies

    75 users

  • Alt Text Display

    Alt Text Display

    Add a context menu to images to show their URL and alt text

    codepo8

    75 users

  • RetroTxt

    RetroTxt

    Turn pieces of ANSI text art and ASCII, NFO documents into HTML using RetroTxt. RetroTxt is the Extension that takes legacy and plain text files and stylizes them into a more acceptable, useful format to view or copy from a web browser tab.

    Ben

    75 users

  • Color Contrast Checker

    Color Contrast Checker

    Checks color contrast between text and background according to WCAG guidelines

    Kevin Taron

    75 users

  • Scripts runner

    Scripts runner

    A Firefox extension to create/run/edit small scripts. Created to improve the Bookmarklet feature, specifically to allow quick editing and testing. It also supports running the scripts inside iframes (bookmarklets don't).

    TrianguloY

    75 users