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

Log in

11,678 extensions found in Web Development

Filter results
Search results
  • Switch UA PLUS

    Switch UA PLUS

    Take control of your browsing by easily changing your User-Agent with what you want. Selection mode available: Manual, Auto, Random

    BL555

    0 users

  • Cycling Try-On - Virtual Fitting Room

    Cycling Try-On - Virtual Fitting Room

    Once the plugin is setup with your photo and google API key, this plugin provides a Try it on button when browsing Sigma Sports website, also tested on Endura. Requires US VPN

    Daniel Mason

    0 users

  • GitHub Git Notes Viewer

    GitHub Git Notes Viewer

    Display git notes inline on GitHub commit pages.

    Trailblaze

    0 users

  • CONTEXT FOCUS

    CONTEXT FOCUS

    ContextFocus is a smart focus blocker that activates automatically no timers, no manual buttons, no setup required.

    Shivam Shukla

    0 users

  • Taoism Quotes

    Taoism Quotes

    Explore Taoism-inspired wisdom with every click. This elegant extension shows a short, mindful quote in a clean popup—simple, calming, and fully offline.

    linh nhat

    0 users

  • JavaScript Disabler

    JavaScript Disabler

    The "JavaScript Disabler" addon for Firefox empowers users with granular control over their browsing experience by allowing them to manage JavaScript execution on websites.

    MU88

    0 users

  • Filter Now

    Filter Now

    简单的离线工具，用于为图片增加基于CSS的滤镜效果。并支持保存图片至本地。

    ntnyq

    0 users

  • ChatGPT Insights

    ChatGPT Insights

    Analyze and extract insights from your ChatGPT conversations, including search queries, thoughts, products, and sources.

    Serge

    0 users

  • Redirect Tracer Lite

    Redirect Tracer Lite

    Theo dõi chuỗi chuyển hướng (HTTP 3xx, header Location) cho trang hiện tại hoặc URL chỉ định. Xuất JSON/CSV.

    mm880com

    0 users

  • RE-FOCUS

    RE-FOCUS

    Replace new tab screen with your today's Main Focus, Weather,Time and Some anime quotes.

    Rohit Abhishek

    0 users

  • Audio Pronunciation Helper

    Audio Pronunciation Helper

    Click a word to hear its pronunciation.

    GAME BÀI ĐỔI THƯỞNG

    0 users

  • Buddhism Quotes — Random Wisdom

    Buddhism Quotes — Random Wisdom

    Discover short Buddhist-inspired lines with every click. This elegant extension shows a peaceful, mindful quote in a clean popup—simple, calming, and fully offline.

    FUN88 - FUN88 BO - Link Vào Fun88 Chính Thức 2026

    0 users

  • Confucius Quotes — Random Wisdom

    Confucius Quotes — Random Wisdom

    Discover timeless wisdom inspired by Confucius. Each click reveals a thoughtful quote in an elegant popup—simple, inspiring, and fully offline.

    W88 - Link Vào W88 HTC Chính Thức Mới Nhất 2026

    0 users

  • Xdebug Cookie

    Xdebug Cookie

    Xdebug Cookie

    lurkker

    0 users

  • SiteNotes Sidebar Advanced

    SiteNotes Sidebar Advanced

    Comprehensive note-taking with advanced tools.

    Raymond

    0 users

  • SEO Unmasked

    SEO Unmasked

    The anti-BS, offline SEO analyzer that exposes raw page data instantly.

    ArchitW

    0 users

  • AI本地助手

    AI本地助手

    Use locally deployed AI models (Ollama/vLLM/llama.cpp) for image/video analysis, video script creation, and prompt enhancement.

    wangxiaohong

    0 users

  • SnapIssue - Bug Reporter

    SnapIssue - Bug Reporter

    Screenshot → GitHub Issue in 3 seconds. Fast, simple bug reporting.

    Jokke

    0 users

  • はてなブログ文字数カウンター

    はてなブログ文字数カウンター

    はてなブログの記事編集画面で文字数をカウントします

    りあ＠キソドメ

    0 users

  • Smart Web Declutter

    Smart Web Declutter

    Hide visual noise on websites and save removed elements for later restoration.

    Alfred

    0 users

  • vigia-elite-remount-page

    vigia-elite-remount-page

    Vigia Elite - Plugin - Suntech

    Fernando Almeida

    0 users

  • NexusLabs CSS Toolkit — 5 Design Tools

    NexusLabs CSS Toolkit — 5 Design Tools

    5 design utilities in one popup — pick colors, style backgrounds, and convert units without leaving your tab. Fully offline.

    Akash Kumar Singh

    0 users

  • PDF Web Clipper

    PDF Web Clipper

    Convert any webpage into a downloadable PDF file.

    Wfawcett

    0 users

  • Bill Reminder & Payment Tracker

    Bill Reminder & Payment Tracker

    Track and remind you about your bill payments automatically.

    Matthew Alexander

    0 users

  • Focus Pilot Pro

    Focus Pilot Pro

    Stay focused with an automated task manager that opens your work tabs and tracks your time.

    Nahid Mahmud

    0 users