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

Log in

7,230 extensions found in Web Development

Filter results
Search results
  • PlantUML Visualizer

    PlantUML Visualizer

    A Chrome / Firefox extension for visualizing PlantUML descriptions.

    WillBooster Inc.

    423 users

  • Dark Mode Everywhere

    Dark Mode Everywhere

    Every website gets a night look, automagically!

    Peta Sittek

    423 users

  • Lunapic Image Edit

    Lunapic Image Edit

    Adds right click image editing link to images.

    lunapic

    420 users

  • compact toolbar

    compact toolbar

    You can toggle as hide/show bookmark's titles on bookmark toolbar.

    kakakikikeke

    419 users

  • Tracking Time Button

    Tracking Time Button

    Enhance your preferred web project manager with the Time Tracker Button and get automatic timesheets.

    TrackingTime

    418 users

  • Open iFrame

    Open iFrame

    Adds context menu items to open a frame (or iframe) in the current tab, a new tab, new window, or incognito window.

    iN4sser

    416 users

  • MobX Developer Tools

    MobX Developer Tools

    Dev-tools for MobX and React. Use this extension to debug pages containing MobX 3.1.15 or higher (https://mobx.js.org/) For more information, please refer to https://github.com/andykog/mobx-devtools/blob/master/README.md

    Andrii Kogut

    415 users

  • GitHub Gloc

    GitHub Gloc

    Github Gloc - counts locs on GitHub pages

    Kas Elvirov

    415 users

  • Who is Hosting this Website?

    Who is Hosting this Website?

    Who is Hosting This Website is a free Add-on service for telling you- where websites are being hosted. "Who is Hosting this Website?" will also determine and display the IP address, DNS records and domain name ownership information (Whois Records).

    Jason Pat

    413 users

  • HybridTvViewer

    HybridTvViewer

    With this add-on, your browser will not download HbbTV/CE-HTML/BML/OHTV web pages (i.e. iTV applications) but will provide a simulator enabling underneath technological features (OIPF,DVB,...)

    Karl

    412 users

  • DWithEase

    DWithEase

    Use Salesforce Commerce Cloud B2C with ease! An extension which makes the Business Manager a happy place! Enjoy using Demandware with ease.

    ForkPoint

    412 users

  • NsLookup — Find DNS Records

    NsLookup — Find DNS Records

    A simple and powerful tool for querying DNS records.

    Ruurtjan Pul

    412 users

  • Night Mode - Dark Theme

    Night Mode - Dark Theme

    A universal dark theme. Night Mode is an extension that helps you quickly turn the screen (browser) to dark at night time. Toolbar button serves as an On & Off switch which enables you to easily and quickly turn the extension On or Off.

    Simple Inc.

    411 users

  • MPT Fullscreen

    MPT Fullscreen

    Makes the Browser Fullscreen when opened.

    Mejía Polanco Technology Solutions

    411 users

  • Tailwind CSS Devtools

    Tailwind CSS Devtools

    All-in-one browser extension for Tailwind CSS Developer.

    Erwin

    409 users

  • Salesforce Show Api Name

    Salesforce Show Api Name

    Display Field & Object API Names on Detail Pages (LEX & Classic).

    Chen Zaichuang

    407 users

  • ViewGrip: For YouTube

    ViewGrip: For YouTube

    We will help you get more YouTube views, subscribers, likes and comments organically.

    ViewGrip

    407 users

  • ShotEasy - Light and easy-to-use screenshot tool

    ShotEasy - Light and easy-to-use screenshot tool

    Easily capture area, or scroll page to get a long screenshot of the full page, with Beautifier and editing tools.

    chenliwen

    401 users

  • SugarMelt

    SugarMelt

    Allows you to change font/style; also adds cheats

    Lure of Chaos

    399 users

  • Text Editor

    Text Editor

    A free, highly customizable text and code editor for your browser.

    Sevina

    397 users

  • SWR DevTools

    SWR DevTools

    A DevTool for SWR

    koba04

    395 users

  • Check XSS

    Check XSS

    Plugin helps in finding site vulnerabilities such as XSS, SQL injection and CRLF. Check XSS makes it possible for you to text XSS (CRLF and SQL commands) with context menu with just 2 mouse clicks.

    Gray Sky

    395 users

  • Open in Brave Browser

    Open in Brave Browser

    Open current page, link, or all tabs in the Brave browser

    Brian

    393 users

  • Font Size Increase

    Font Size Increase

    Increase font size on any web page with one click.

    Stefan vd

    391 users

  • Mobile View Tester

    Mobile View Tester

    User can test the look of a website on different mobile devices

    TheWebDev

    391 users