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

Log in

10,003 extensions found in Web Development

Filter results
Search results
  • IP to Country Flag & My IP- WhatIsMyIP.click

    IP to Country Flag & My IP- WhatIsMyIP.click

    IP to Country Flag - WhatIsMyIP.click Display the IP and Country information of the currently viewed website and also display your external IP address.

    Eria IO

    132 users

  • CSDN和知乎增强器

    CSDN和知乎增强器

    移除CSDN和知乎的复制限制和登录弹窗

    Jimmy Shine

    129 users

  • Mail Tracker Pro

    Mail Tracker Pro

    Advanced email tracking extension for Gmail. Track when your emails are opened and get real-time notifications.

    Himanshu Sharma

    129 users

  • TwineHacker z

    TwineHacker z

    Allows you to change font/style; also adds cheats

    akapierrorwhat

    128 users

  • Check iframe

    Check iframe

    Firefox add-on that indicates if the current web page uses iframe and frame tags. Meaning of the icon colors: gray (not checked), green (no tags), orange (tags), purple (source list matches). The add-on can scroll and redirect to the tag elements.

    CarlosAMolina

    128 users

  • OpenPutty

    OpenPutty

    An extension to open Putty from your Firefox browser.

    Gireen

    128 users

  • BugzillaJS - Tweaks for Bugzilla

    BugzillaJS - Tweaks for Bugzilla

    BugzillaJS adds a number of features to Mozilla's Bugzilla. Keyboard shortcuts, quick file links, inline image/github previews, gravatars and more.

    Gregory Koberger

    128 users

  • Snap Pixel Helper

    Snap Pixel Helper

    Snap’s Pixel Helper is a simple Browser Extension, which allows advertisers to verify, debug, and troubleshoot Snap Pixel implementations.

    Greg Varsanyi

    128 users

  • Extension Inspector

    Extension Inspector

    Inspect Firefox and Chrome extensions with tim-we.github.io/web-ext-inspector

    Tim Weißenfels

    128 users

  • Location Switcher

    Location Switcher

    Switching between development and production sites.

    Ethan Liu

    127 users

  • YouTube Ad Blocker

    YouTube Ad Blocker

    Blocks ads on YouTube.

    thenewmsy

    127 users

  • Web Design Pirate for DevTools

    Web Design Pirate for DevTools

    Fast and easy way to copy web components, HTML widgets and parts of website design.

    Dalimil Hajek

    126 users

  • Advanced Web Text Extractor

    Advanced Web Text Extractor

    Extract, filter, and format text from web pages with advanced features

    Go88

    126 users

  • File System Access

    File System Access

    The File System Access API allows web apps to interact with files on the local device.

    sycxyc

    126 users

  • Profile Manager Pro – Turbo Login, Smart Control

    Profile Manager Pro – Turbo Login, Smart Control

    Advanced profile management for your favorite websites. Easily switch between multiple profiles, manage cookies, and enhance your browsing experience.

    Profile Manager Pro

    126 users

  • Reminder

    Reminder

    This is a reminder add-on which reminds you about the things u specify ,provided some time.

    Mohammed Avez

    126 users

  • GeoLocationControl

    GeoLocationControl

    Simulate geolocation by adding points into a map. You can also simulate movement across path.

    Jrmgx

    126 users

  • OPFS Browser

    OPFS Browser

    View and edit the OPFS file system in the debug tools.

    JCHU634

    125 users

  • AWS role switch

    AWS role switch

    Browser plugin to quickly switch between roles on the AWS console

    Jan

    124 users

  • Netmirror Extension

    Netmirror Extension

    Add, modify or remove a header for any request.

    developer

  • Check Wordpress Version

    Check Wordpress Version

    Check what version of WordPress a web page is powered by

    Francesco De Stefano

    124 users

  • Salesforce Advanced Search

    Salesforce Advanced Search

    Salesforce Advanced Search Plugin is useful to search any text inside Salesforce Apex Classes, Triggers, Visualforce Pages, Components and Email Templates. It also has one utility to show Field API Names along side of label in object's details page.

    Yasir Arafat

    123 users

  • Modify Headers DNR

    Modify Headers DNR

    Modify request and response headers through the DeclarativeNetRequest API

    Brawl

    122 users

  • AWS Multi-Account Containers

    AWS Multi-Account Containers

    Manage multiple AWS accounts concurrently in separate tabs

    Nico

    122 users

  • HypeStat Analyzer

    HypeStat Analyzer

    Check any website's traffic

    AlxMin

    122 users