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

Log in

13,697 extensions found in Web Development

Filter results
Search results
  • Salesforce Inspector Advanced

    Salesforce Inspector Advanced

    Productivity tools for Salesforce administrators and developers to inspect data and metadata directly from the Salesforce UI.

    Olivier Dufour

    268 users

  • MILK — Cookie Manager

    MILK — Cookie Manager

    Cookie's best friend! Modern cookie manager.

    Rafael Grigorian

    267 users

  • SWR DevTools

    SWR DevTools

    A DevTool for SWR

    koba04

    266 users

  • PixiJS Devtools

    PixiJS Devtools

    Debug games and apps written with PixiJS

    Bob Fanger

    266 users

  • Proton Calendar Shortcuts

    Proton Calendar Shortcuts

    Adds customizable keyboard shortcuts (e.g., next, previous, today, ...) to Proton Calendar.

    Simon

    266 users

  • RTL toggle

    RTL toggle

    Adds a reverse page orientation so that the text is more suitable for your language.

    trl toggle

    263 users

  • hektCaptcha: hCaptcha Solver

    hektCaptcha: hCaptcha Solver

    Automatically solve hCaptcha using AI. Locally, with Firefox extension.

    Wikidepia

    263 users

  • Vonage® Integration Suite

    Vonage® Integration Suite

    Cloud phone system integration with top business applications. Done better.

    Vonage Integration Suite

    263 users

  • gRPC-Web Developer Tools

    gRPC-Web Developer Tools

    gRPC-Web Developer Tools for debugging application's gRPC-Web network requests.

    SafetyCulture

    262 users

  • var_dump

    var_dump

    client-side var_dump beautifier

    Cl00e9ment

    261 users

  • Refresh Web Page Regularly

    Refresh Web Page Regularly

    An extension which is scheduled refresh of web pages to view the latest operation status or keep your pages signed in

    volta

    261 users

  • Awesome Timestamp

    Awesome Timestamp

    Convert timestamps to datetime and datetime to timestamps.

    WebIT-Service

    260 users

  • Open in Opera

    Open in Opera

    Open current page, link, or all tabs in the Opera browser.

    Andy Portmen

    260 users

  • Scroll to Top

    Scroll to Top

    Add a stylish scroll-to-top button for all websites.

    Muyor

    259 users

  • Environment Marker

    Environment Marker

    Use the Environment Marker extension and prevent screw-ups with the (programming) environments.

    Environment Marker

    259 users

  • View Page Source

    View Page Source

    Adds the ability to open the page source in a new tab via button (Desktop) or menu (Firefox for Android).

    tnh

    258 users

  • URL2QRCode

    URL2QRCode

    Converts Current URL to QRCode.

    Firefox user 13535997

    258 users

  • Cryptext

    Cryptext

    Encrypts and decrypts text using various encoding methods.

    cscarpa

    257 users

  • CSP Content Security Policy Generator

    CSP Content Security Policy Generator

    Best Content-Security-Policy generator to automatically create Strict CSP policies (with SHA support) for any website.

    RapidSec

    257 users

  • PinVault Pro – Pinterest Bulk Downloader

    PinVault Pro – Pinterest Bulk Downloader

    Professional Pinterest bulk downloader with AI auto-scroll, dual-interface sync, and smart vault organization for creators.

    Yogeshwar Kumar

    256 users

  • NS Lookup - DNS Analysis

    NS Lookup - DNS Analysis

    Quick DNS analysis of the domain you're viewing, with a single click to open the full report.

    PlanetHoster

    255 users

  • Tab Refresher-by Hussain

    Tab Refresher-by Hussain

    Tab Refresher is a simple and efficient Firefox add-on that automatically refreshes specific browser tabs at customizable time intervals. Ideal for monitoring live data, refreshing dashboards, or staying updated on web content without manual effort.

    hussain

    254 users

  • CRX Downloader

    CRX Downloader

    CRX downloader, Chrome/Edge plugin download, Microsoft and Google Extension Store plugins available for download

    waahah

    254 users

  • Scraper Master - Simple Web Scraping

    Scraper Master - Simple Web Scraping

    Your ultimate companion for effortless web data extraction.

    voxy

    254 users

  • CookieSwap

    CookieSwap

    Tool to save and swap out a collection of cookies on the fly that allows implement multilogin feature

    ExtUp

    253 users