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

Log in

13,997 extensions found in Web Development

Filter results
Search results
  • MiOffice File Tools

    MiOffice File Tools

    66+ file tools — PDF, image, video, AI. Compress, convert, merge, resize, remove backgrounds. All local processing.MiOffice brings 66+ browser-based file processing tools to Firefox. Right-click any image to compress, resize, convert, or remove

    JayMiOffice

    10 users

  • SEO Health Checker - On-Page SEO Audit

    SEO Health Checker - On-Page SEO Audit

    Analyze on-page SEO health for any webpage. Check meta tags, headings, links, schema, images, keyword density, and SEO Health score.

    Alimam Miya

    10 users

  • Case Changer

    Case Changer

    Transform text case instantly without leaving the browser.

    Web Guy

    10 users

  • RankingsFactor – AI SEO & Website Analyzer

    RankingsFactor – AI SEO & Website Analyzer

    Analyze SEO, SERP rankings, and site performance instantly with the AI-powered RankingsFactor Chrome Extension.

    Rankingsfactor

    10 users

  • Dev Mode

    Dev Mode

    A simple helper extension for developers working on localhost environments.

    D7OM

    10 users

  • FFDiff

    FFDiff

    Pretty-print Git patch/diff files.

    Daniel Voros

    10 users

  • Copy Link & Text as markdown

    Copy Link & Text as markdown

    Copies the link and text as a markdown link with a bullet point: -[link text](link)

    Danilo

    10 users

  • Dark Everywhere

    Dark Everywhere

    dark mode on all websites with a global on/off button. Includes global toggle, per-site settings, custom colors, transparency, brightness/contrast filters.

    Dark Mode Everywhere

    10 users

  • WASD Pager

    WASD Pager

    Page Flipping Helper Extension for Firefox. *A - PagePrevious *D - PageNext W - PageUp S - PageDown Q - Home E - End * - need to be configured. Using [RegExp] to match the [Site], and [querySelector] to find the corresponding Document Elements

    Ren Wei

    9 users

  • Fusion Proxy

    Fusion Proxy

    Access 105M+ residential, mobile, datacenter, and ISP proxies directly from Firefox. One-click activation, geo-targeting in 195+ countries, instant IP rotation, and session control. Requires a Fusion Proxy account.

    Fusion Proxy

    9 users

  • S3 Bucket Scanner

    S3 Bucket Scanner

    This extensions helps you to find S3 buckets while you are surfing on browser. You can easily check for public s3 buckets and may be some buckets which does't exist.

    hackruler

    9 users

  • GOV.UK Browser Extension

    GOV.UK Browser Extension

    Utility Extension for people working on GOV.UK

    GOV.UK Developers

    9 users

  • Unacademy Watermark Remover

    Unacademy Watermark Remover

    Remove annoying account watermark from Unacademy hosted videos

    Sahil Ahuwalia

    9 users

  • browser markdown

    browser markdown

    Fast, safe markdown rendering for local and remote .md files.

    Jay Suthar

    9 users

  • JSON-LD Tester & Agent Inspector

    JSON-LD Tester & Agent Inspector

    Inspect and test JSON-LD, Schema.org data and agent tools on any website. On-page SEO, HTTP headers and an agent-readiness score — all local, nothing uploaded.

    DevAd

    9 users

  • DreamEditor (Code Editor)

    DreamEditor (Code Editor)

    Open source cross-platform code editor.

    blountmedia.net

    9 users

  • MoveChat: Export & Transfer AI Chats

    MoveChat: Export & Transfer AI Chats

    Capture AI chat sessions and resume them in a new chat on any platform.

    VC067

    9 users

  • Save image as PDF, PNG, JPG, WebP

    Save image as PDF, PNG, JPG, WebP

    Convierte y guarda cualquier imagen como PDF, PNG, JPG o WebP desde el menú contextual. También resalta todas las imágenes de una página.

    Daniel Martinez

    9 users

  • CHATGPT Prodigy: AutoGPT with Internet Access

    CHATGPT Prodigy: AutoGPT with Internet Access

    Combined capabilities of AutoGPT and ChatGPT. Let ChatGPT automate your tasks. Save Output into Books/Articles and much more.

    AiQUEST

    9 users

  • Jira Boards Suite by Sngular

    Jira Boards Suite by Sngular

    Augment Jira boards with Kanban Combined WIP and Card Colors for Jira Boards, two separate Atlassian Marketplace apps by Sngular.

    MrAddon

    9 users

  • Auto Refresh Page

    Auto Refresh Page

    Tự động làm mới trang web theo khoảng thời gian tùy chỉnh.

    Kiến Thức Genz

    9 users

  • Image Extractor - Extract Images from Any Website

    Image Extractor - Extract Images from Any Website

    Extract images from the current page and review them in a fast, filterable gallery. Filter by format, size, source type, or domain, then copy URLs or download single images and ZIP archives.

    Treustrasse

    9 users

  • Arc Like Copy Link

    Arc Like Copy Link

    Copies the current tab's URL to clipboard with animated icon and theme-aware color.

    uday_699

    9 users

  • LeetCode to GitHub Sync

    LeetCode to GitHub Sync

    Automatically sync accepted LeetCode solutions to your GitHub repository with organized filenames and folders.

    Ankit

    9 users

  • One Click Site Inspector

    One Click Site Inspector

    One-click website audit: security, performance, SEO, privacy & accessibility. 130+ checks, A+ to F grading, free.

    Tom Isgren

    9 users