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

Log in

12,244 extensions found in Web Development

Filter results
Search results
  • Web Page Time Display

    Web Page Time Display

    Show the current time on any webpage.

    Ellerd

    1 user

  • eGrab

    eGrab

    Hover-select any element on a webpage, then right-click to copy HTML, CSS, JavaScript references, or all combined. No DevTools required.

    Rayen Bahroun

    1 user

  • Seoly

    Seoly

    Seoly is a professional SEO analysis tool for Firefox that helps you inspect websites, crawl pages, and identify technical SEO issues. It analyzes links, page structure, metadata, and other key signals so you can quick

    Sophie

    1 user

  • SEO Robot TXT

    SEO Robot TXT

    Check robots.txt

    Auto Detailing and Window

    1 user

  • Fluxtype

    Fluxtype

    Professional-grade typing velocity engine with real-time session persistence and audit reports.

    Retro Flow Labs

    1 user

  • ProtoConsent

    ProtoConsent

    Privacy organized by purpose. Block ads, trackers and banners per site. Two modes, conditional GPC, 40+ blocklists, open source.

    ProtoConsent

    1 user

  • Show my ip & friendly report

    Show my ip & friendly report

    View your IP address and suitable for reporting

    mahdi.agnelli

    1 user

  • Pagereview.io

    Pagereview.io

    Pagereview.io add-on to help users collaborate on website designs. Leave comments on page node, reply, resolve and collaborate with your team.

    Pagereview.io

    1 user

  • Box Shadow

    Box Shadow

    Visual CSS box-shadow builder with live preview

    Artem

    1 user

  • PepAsist

    PepAsist

    Your best friend for questions

    Pep6

  • Design Mockup Helper

    Design Mockup Helper

    Easily create and manage design mockups with tips and visual guidance.

    Pdss

    1 user

  • TrackMeck – Webseiten Ressourcen-Tracker & CSV-Exp

    TrackMeck – Webseiten Ressourcen-Tracker & CSV-Exp

    Tracke alle geladenen Ressourcen, API-Calls & Assets auf einer Webseite – mit CSV-Export für Analyse & Sicherheit.

    M2-Fusin

    1 user

  • User-Agent Header Manager

    User-Agent Header Manager

    Customize your browser's User-Agent and other HTTP headers with ease. This powerful extension lets you modify how websites see your browser, perfect for testing, development, and privacy customization.

    Viacheslav Zhabonos

    1 user

  • Injetor de Texto

    Injetor de Texto

    Salve textos, busque rapidamente e cole notas em qualquer campo da pagina com atalhos, menu de contexto e sincronizacao por conta.

    Davi Eduardo

    1 user

  • Instant Form Filler

    Instant Form Filler

    Fill forms instantly with realistic dummy data — perfect for developers and testers.

    Qemren

    1 user

  • Accessibility Snapshot Auditor

    Accessibility Snapshot Auditor

    Audit page accessibility locally: structure, labels, media, ARIA, keyboard, and contrast.

    roper

    1 user

  • LoveSpark Sponsor Skip

    LoveSpark Sponsor Skip

    Auto-skip YouTube sponsors & self-promos. Crowdsourced with SponsorBlock 💕

    Joona Tyrninoksa

    1 user

  • Competitor Marketing Spy by Ecomzens

    Competitor Marketing Spy by Ecomzens

    Competitor Marketing Spy by Ecomzens helps marketers and business owners quickly detect marketing pixels, analytics tools, platforms, and tracking technologies used on competitor websites.

    Ecomzens llc

    1 user

  • UTF Finder

    UTF Finder

    Click on any element to get the xPath

    Yu

    1 user

  • Localhost New Tab

    Localhost New Tab

    Imposta una pagina caricata su un server web locale come nuova scheda

    Giulio

    1 user

  • LeetJump - Leetcode quick search extension

    LeetJump - Leetcode quick search extension

    Quick LeetCode problem search with Alt+L - minimal, fast, and clean interface

    lirena00

    1 user

  • Floating Note

    Floating Note

    Tüm sekmelerde sabit yüzen not defteri butonu

    dizayn16.com.tr

    1 user

  • scrb — AI Product Description Generator

    scrb — AI Product Description Generator

    Generate professional product descriptions, SEO titles and bullet points for Amazon, Etsy, Shopify in 25+ languages. Powered by the scrb AI engine. Click the icon on any product page.

    vøiddo

    1 user

  • RenderScope: SSR vs CSR Viewer

    RenderScope: SSR vs CSR Viewer

    Compare Client Side and Server Side Rendering in Desktop, Tablet, and Mobile views.

    Sourav Dutta

    1 user

  • MeterX — by ajithakdev

    MeterX — by ajithakdev

    Open-source speed test. Measure download, upload, ping, jitter, packet loss with readiness labels and PDF reports.

    ajithakdev

    1 user