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

Log in

10,179 extensions found in Web Development

Filter results
Search results
  • Assistente de Cópia PJe

    Assistente de Cópia PJe

    Acessa o HTML de textos copiados de editores de texto. Feita a cópia de um texto qualquer (editor de documentos ou outra fonte), a extensão acessa a versão HTML do texto e formatação para que o usuário possa colar esse conteúdo em algum editor HTML.

    TRT13

    79 users

  • Coupon Clipper

    Coupon Clipper

    Clips the first 250 coupons at King Soopers, Kroger, and Sprouts with one click. Save time and Money!

    David Zirinsky

    79 users

  • User Agent Editor

    User Agent Editor

    Change your user agent quickly and easily

    Francesco De Stefano

    79 users

  • Site Wipe

    Site Wipe

    Clear cookies, cache, and storage—just for the current site.

    Drowzy Dev

    79 users

  • Colorless for Firefox

    Colorless for Firefox

    Remove colors from a web page that it becomes black and white, or sepia.

    hereafter

    78 users

  • View Page Source Button

    View Page Source Button

    Adds a View Page Source button to the toolbar

    Markus Popp

    78 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

    78 users

  • Timestamp Converter

    Timestamp Converter

    Convert timestamps into human readable format or dates into timestamps

    Ceenen

    78 users

  • WebSitePulse Test Tools

    WebSitePulse Test Tools

    Instantly test your website availability or server response time, ping response, MX, NS records and much more.

    websitepulse

    78 users

  • Proxy Manager

    Proxy Manager

    The 'Proxy Manager' extension allows you to quickly and easily manage your browser's proxy settings

    Веселов Антон

    78 users

  • Tracked for Basecamp

    Tracked for Basecamp

    Kanban boards, labels, and estimates all within Basecamp.

    TrackedHQ

    78 users

  • Atomic CSS Devtools

    Atomic CSS Devtools

    A devtool panel for debugging Atomic CSS rules as if they were not atomic

    Alexandre Stahmer

    77 users

  • Alt Text Display

    Alt Text Display

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

    codepo8

    77 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

    77 users

  • 淘宝、京东、苏宁抢购助手

    淘宝、京东、苏宁抢购助手

    淘宝、京东、苏宁抢购助手

    Aice.Fu

    77 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

    77 users

  • OneClick

    OneClick

    Navigate to your favorite actions on the websites you love with just one click.

    Ariful Alam

    77 users

  • Scroll Everywhere

    Scroll Everywhere

    Activate the scroll bar on the pages that are being viewed even if it has been disabled. / Muestra la barra de navegación (scroll) en todas las páginas.

    Unai Valle

    76 users

  • SelectorsHub Pro

    SelectorsHub Pro

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

    Sanjay Kumar | SelectorsHub Founder

    76 users

  • Baseliner

    Baseliner

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

    jpedroribeiro

    76 users

  • HTML Tag Error Checker

    HTML Tag Error Checker

    Check the HTML start and end tags for problems.

    macha

    76 users

  • Qualis Capes

    Qualis Capes

    Exibe o fator Qualis Periódico diretamente na página scopus.com/sources

    bgeneto-1364594649.99

    76 users

  • Toggle CSS outline

    Toggle CSS outline

    Simple extension that toggles a red outline around all elements in a page on/off, useful for CSS debugging.

    theodejager

    75 users

  • PHP Revival

    PHP Revival

    Open source extension that changes styles on php.net website with many other fixes for better experience of using documentation. Extension adds the dark theme to php code examples and changes its color schemes

    Serhii

    75 users

  • Easy XSS V2

    Easy XSS V2

    Easy XSS V2 在使用EasyXSS的时候发现，payloads太少，所以萌生出了添加payloads的想法 源码在 https://github.com/s7safe/Easy-XSS-V2

    Tian钧

    75 users