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13,246 extensions found in Web Development

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  • Geek Sidebar - Free DeepSeek & Bookmark Sync

    Geek Sidebar - Free DeepSeek & Bookmark Sync

    Write smarter with ChatGPT, Claude, Grok & DeepSeek.All-in-one AI, smart bookmarks,and tools—clean up links, check pages, summarize, analyze docs, screenshots.Your sidebar just leveled up.

    极客侧边栏

    219 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

    219 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

    219 users

  • EyeBankWeb Plugin Adapter

    EyeBankWeb Plugin Adapter

    This add-on allows FireFox to call the locally installed IrisGuard EyeBank APIs using native messaging, giving the user full functionality of all IrisGuard EyeBank APIs calls such as capturing iris images and doing a recognition.

    Firefox user 13251731

    218 users

  • Fire Source Viewer

    Fire Source Viewer

    Your rapid source code viewer

    Francesco De Stefano

    218 users

  • Eye-Able® Audit for WCAG

    Eye-Able® Audit for WCAG

    Check your website for the most common WCAG/ADA errors.

    Web Inclusion GmBH

    218 users

  • JS Injector

    JS Injector

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

    Francesco De Stefano

    218 users

  • IPvFooBarBaz

    IPvFooBarBaz

    Display the server IP address, with a realtime summary of IPv4, IPv6, ASN, hostname, and HTTPS information across all page elements.

    ziad87

    218 users

  • Responsive View Simulator

    Responsive View Simulator

    Seamlessly test website appearance on various mobile devices with this handy extension. Preview the responsive design in real-time.

    Buy Bulk Weed

    218 users

  • Remove css from website

    Remove css from website

    Removes css from website. Remove inline styles, stylesheets, add custom styles.

    Michal Szczepanski

    216 users

  • Video Speed Controller

    Video Speed Controller

    Control the playback speed of videos on any HTML5 video player.

    video for web

    215 users

  • Ollama Client

    Ollama Client

    Local-first private LLM chat with Ollama, LM Studio, and llama.cpp, with local RAG, web search, and page context.

    Shishir Chaurasiya

    215 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

    214 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

    214 users

  • RNPSign

    RNPSign

    Essa extensão permite configurar certificados para fins de assinatura digital.

    USDE RNP

    214 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

    214 users

  • Link Analyzer

    Link Analyzer

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

    damufo

    213 users

  • SEO Website Scanner: Meta, Headings, etc.

    SEO Website Scanner: Meta, Headings, etc.

    Scans a page for basic SEO meta information and headings.

    SEO Website Scanner

    212 users

  • LoremGen

    LoremGen

    Get your every day lorem ipsum text faster.

    Colin Espinas

    212 users

  • Custom Site JS

    Custom Site JS

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

    David Hicken

    212 users

  • Proxy Router (SOCKS5 & HTTP)

    Proxy Router (SOCKS5 & HTTP)

    Route any domains using SOCKS5 proxies with ability to proxy any TAB.

    Ilya Bondarchuk

    211 users

  • Clear Cache & Reload

    Clear Cache & Reload

    One-click button to clear site cache and reload the page.

    MM

    211 users

  • responsivo

    responsivo

    A web extension for firefox allowing to view multiple view widths at once. Inspired by Emmet Re:view

    michael.lill

    211 users

  • CoreTax PDF Downloader

    CoreTax PDF Downloader

    Quickly download multiple PDFs from CoreTax portal using official API. No page reload required.

    Mabaega

    211 users

  • YouTube Miniplayer Button Restorer

    YouTube Miniplayer Button Restorer

    Restores the missing miniplayer button to YouTube's video player

    2ipper

    211 users