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8,962 extensions found in Web Development

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  • WaybackURL

    WaybackURL

    Fetch all the URLs that the Wayback Machine knows about for a domain

    Hossein Shourabi

    251 users

  • 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

    249 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

    248 users

  • Ekoru Search

    Ekoru Search

    Every search helps remove plastic

    ekoru

    248 users

  • Webcompat.com Reporter

    Webcompat.com Reporter

    Adds a button to allow users to easily report site compatibility issues at webcompat.com, for the active tab.

    Thomas Wisniewski

    246 users

  • Alexa RANK

    Alexa RANK

    Alexa Traffic Rank is Alexa Internet's free extension for Mozilla. Alexa Traffic Rank accompanies you as you surf, providing you with Alexa.com data about the sites you visit without interrupting your browsing.

    thoduongluat.com

    245 users

  • JS Injector

    JS Injector

    Inject JavaScript custom code into every webpage (e.g. to help with debugging).

    Francesco De Stefano

    245 users

  • X QRCode

    X QRCode

    A powerfull chrome extension for qrcode encoding and decoding.

    nuintun

    244 users

  • Proxy Toggle

    Proxy Toggle

    Button to switch between system-set (off) and manually-set (on) proxy.

    Ben

    243 users

  • Custom Site JS

    Custom Site JS

    Run your own (per url or domain) custom JavaScript on sites.

    David Hicken

    243 users

  • InspectWP - WordPress Theme & Plugin Detector

    InspectWP - WordPress Theme & Plugin Detector

    InspectWP is a website and WordPress analysis tool which includes a WordPress theme and plugin detector.

    InspectWP

    242 users

  • Easy DNS lookup

    Easy DNS lookup

    Utility to do DNS lookups directly to DNS APIs and display the response in the addon.

    wesinator

    242 users

  • Rentgen

    Rentgen

    Rentgen illustrates the amount of tracking scripts on a website and helps with formulating an email to the website admin, which can be a basis for a GDPR complaint.

    “Internet. Time to act!” Foundation

    241 users

  • Easy Steam Collection

    Easy Steam Collection

    This will create an easier way to add all of your addons to any stream collection you create in a single click.

    SteamCollectionAddAll

    240 users

  • Split-Screen Browser Tool

    Split-Screen Browser Tool

    Easily split your browser window to view multiple websites side by side.

    Reginalds

    240 users

  • Detector Whats Font

    Detector Whats Font

    You can find out the font of a web page very easily.

    macha

    239 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

    239 users

  • Skip Ads

    Skip Ads

    Skip all annoying ads

    I Am Your Fear

    238 users

  • Color Picker

    Color Picker

    Pick up amazing color on one click

    Lokdien

    238 users

  • Heading Tag Markup

    Heading Tag Markup

    This extension visual highlights the h-Tag on every page.

    Thomas Czernik

    238 users

  • Canvas Capture

    Canvas Capture

    Capture video from canvas elements

    Chase

    237 users

  • LoremGen

    LoremGen

    Get your every day lorem ipsum text faster.

    Colin Espinas

    237 users

  • all-in-one

    all-in-one

    Facility for providing suite of tools for handling web components e.g. standard formats HTML, RSS, M3U8, and more.

    Firefox user 15314155

    235 users

  • JavaScript Switch

    JavaScript Switch

    This plugin provides a button which behaves like that, set `javascript.enabled`=`false` or `true` at `about:config` page..

    Novs Yama

    234 users

  • NumÉcoDiag

    NumÉcoDiag

    NumEcoDiag vous permet d’évaluer facilement l’écoconception de votre service ou produit numérique. Développé par la MiNumEco, il se base sur les 79 critères du Référentiel Général d’Écoconception de Services Numériques (RGESN).

    MiNumEco

    234 users