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

Log in

12,185 extensions found in Web Development

Filter results
Search results
  • Js Helper

    Js Helper

    Extension for build GTM custom JavaScript variable.

    Renra Sedoya

    2 users

  • Umbraco Power Tools

    Umbraco Power Tools

    Essential toolkit for Umbraco developers: quick admin navigation, community feed, event calendar and forum posts - all in one popup.

    Sebastiaan Janssen

    2 users

  • JavaScript Code Injector

    JavaScript Code Injector

    Execute custom JavaScript code for each site

    yo-wan

    2 users

  • Image Quality Analyzer

    Image Quality Analyzer

    Анализирует качество изображений на разных viewport и DPR

    gentofluck

    2 users

  • Personal Special Characters

    Personal Special Characters

    A personnal short list of special characters to copy/paste wherever I need, based on Phil Tsaryk’s addon

    AlexandreT

    2 users

  • Forex Calculator Suite

    Forex Calculator Suite

    All-in-one Forex calculator: PIP value, lot size/position size, leverage, and profit/loss — fast risk-management tool for traders.

    Kiến Thức Số

    2 users

  • Collab e-Faktura Browser Extension

    Collab e-Faktura Browser Extension

    Collab e-Faktura browser extension This is a browser plugin used to sign JSON packages with local certificate and create JWS.

    Accent

    2 users

  • Prettify USACO

    Prettify USACO

    Get prettier, more readable USACO Solutions!

    Prettify USACO

    2 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

    2 users

  • Ad Detective – Uncover Hidden Ads

    Ad Detective – Uncover Hidden Ads

    Uncover hidden advertising across Facebook, Google, and LinkedIn with this easy-to-use transparency tool.Uncover hidden advertising across Facebook, Google, and LinkedIn with this easy-to-use transparency tool. Find your competitor ads

    Sourabh Nagori

    2 users

  • Smart Accountant: Tax Calc | حاسبة الضرائب

    Smart Accountant: Tax Calc | حاسبة الضرائب

    Professional Tax Calculator: Calculate VAT & WHT instantly. Supports multiple currencies, dark mode, and bilingual interface.

    helsawalhey

    2 users

  • Dependabot Vulnerability List

    Dependabot Vulnerability List

    See all Dependabot alerts for one or more Github organizations.

    rousseaulabs

    2 users

  • Page Element Cleaner

    Page Element Cleaner

    Remove distracting elements from any webpage with a simple click.

    Anastasia

    2 users

  • Modern Python Docs

    Modern Python Docs

    Redirects all Python 2 doc pages to the matching Python 3 page.

    Mark1152

    2 users

  • Privatus_

    Privatus_

    Advanced privacy protection: 156 mitigated attack vectors, HIBP k-anonymity, CT log monitoring, DoH, and SRI enforcement.

    Cristiano

    2 users

  • Coder Notes

    Coder Notes

    It allows you to store code into tabs for temporary use.

    Damir Šijaković

    2 users

  • TitlePage Express

    TitlePage Express

    The TitlePage Express browser extension finds ISBNs while you browse the internet, providing quick access to TitlePage metadata.

    Sòng Bài C54

    2 users

  • Link Player

    Link Player

    Link Player forked and developed from extract video link

    NecessityDev

    2 users

  • MaterialBox

    MaterialBox

    一个本地优先的浏览器素材管理扩展，支持 Chrome 和 Firefox。它可以从网页中采集图片与视频，保存在本地 IndexedDB 中，并结合本地模型做基础智能分类。

    selfree

    2 users

  • Salesforce Lightning Queue Refresher

    Salesforce Lightning Queue Refresher

    Will automatically refresh both the 'table' view && the 'side bar' view.

    VI68

    2 users

  • Simple Ad & Popup Blocker

    Simple Ad & Popup Blocker

    Chặn popup và quảng cáo phổ biến tự động, chạy nền và ẩn hoàn toàn.

    89betgreen

    2 users

  • FFSleep

    FFSleep

    FFSleep is a lightweight performance tool that helps you save RAM and CPU by putting inactive tabs to sleep. Reclaim your system resources with a single click

    ECU

    2 users

  • NetScope: Network Analyzer

    NetScope: Network Analyzer

    NetScope by Yousef Honarmand: Real-time IP & network analyzer with site comparison and offline alerts.

    Yousef

    2 users

  • Spotlight

    Spotlight

    Highlight any element on a webpage, dim everything else, and capture clean screenshots. Privacy-first - no tracking, no analytics, runs entirely on your device.

    Ajoy Gonsalves

    2 users

  • NREGA Demand Automation

    NREGA Demand Automation

    A lightweight browser addon that simplifies filling the NREGA Demand for Work form. It adds a floating ⚙️ button that opens a compact, draggable control panel and a modern date picker.

    bkn

    2 users