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

Log in

7,512 extensions found in Web Development

Filter results
Search results
  • Proxy Toggle

    Proxy Toggle

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

    Ben

    270 users

  • Scroll to Top

    Scroll to Top

    Add a stylish scroll-to-top button for all websites.

    Muyor

    270 users

  • Temporary Mobile View

    Temporary Mobile View

    Temporarily switch the current tab into Android or iOS view

    Lunu

    267 users

  • Image Map Editor

    Image Map Editor

    Check and editing the image maps inside the web page with magnifying glass.

    Heinz-Jürgen Boms

    267 users

  • SeLite SQLite Connection Manager

    SeLite SQLite Connection Manager

    It manages SQLite DB connection(s). It can be used with other extensions from SeLite family, or on its own.

    Peter Lyons Kehl

    267 users

  • Performance-Analyser

    Performance-Analyser

    Get insight into the performance of the website in the current tab - sort of a mini live version of WebPageTest.

    Michael Mrowetz

    266 users

  • a11y-outline

    a11y-outline

    Many screen readers like JAWS or NVDA have shortcuts to bring up a list of landmarks, headings or links. This browser extension provides the same functionality without requiring a screen reader. Just press Ctrl+Shift+7.

    xi

    266 users

  • AWS SSO Extender

    AWS SSO Extender

    Demo: https://www.youtube.com/watch?v=Kpd82mK3Itk ⭐ Quickly access your Favorite AWS SSO apps 🎨 Customize your profiles, roles & AWS console 🔑 Assume IAM roles from your SSO profiles 🦊 Open the AWS console in Firefox Containers

    WTFender

    266 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

    266 users

  • HTTP Header Spy

    HTTP Header Spy

    HTTP Header Spy enables you to inspect request- response headers and cookies right after page load with no extra clicks.

    Michiel Roos

    265 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

    265 users

  • Open in Opera

    Open in Opera

    Open current page, link, or all tabs in the Opera browser.

    Andy Portmen

    264 users

  • Vidoo

    Vidoo

    Change the speed of medias, adjust video filters, skip Ads automatically, flip videos horizontally or vertically, rotate, etc. Adjustable filter parameters: brightness, contrast, saturation, etc.

    Geraked

    262 users

  • Copy Link/Tab Name and URL

    Copy Link/Tab Name and URL

    Copy the name and URL of a link or a Tab. 复制链接或标签页的名称和地址

    Ren Wei

    262 users

  • network monitor without devtools

    network monitor without devtools

    monitor the network without web devtools.

    lune

    262 users

  • ScriptCat Beta

    ScriptCat Beta

    脚本猫,一个用户脚本管理器,支持后台脚本、定时脚本、页面脚本,可编写脚本每天帮你自动处理事务.

    王一之

    260 users

  • Link Analyzer

    Link Analyzer

    Analyze the status of the links in a complete webpage or in selected text.

    damufo

    260 users

  • all reload

    all reload

    You can reload all tabs from right clicking context menu.

    kakakikikeke

    258 users

  • LoremGen

    LoremGen

    Get your every day lorem ipsum text faster.

    Colin Espinas

    258 users

  • Auto Refresh A

    Auto Refresh A

    Automatically refresh the page every 60 seconds.

    pabloduenas

    258 users

  • Timer Mulp

    Timer Mulp

    Make Timer great again.

    Gilnom

    257 users

  • Adobe Target VEC Helper

    Adobe Target VEC Helper

    Load your website's desktop and mobile views effortlessly in Adobe Target with the VEC helper extension

    Adobe

    257 users

  • URL2QRCode

    URL2QRCode

    Converts Current URL to QRCode.

    Firefox user 13535997

    257 users

  • Characters Counter

    Characters Counter

    Find out how many characters there are in a selection by simply right-clicking it.

    Minkiu

    256 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

    255 users