User Agent Switcher
Change your user agent easily. Allows custom user agent based on domain
372 users
MM3 Proxy Switch
In the Firefox Browser (and other Mozilla programs) you can per default configure only the setting for one internet connection. With this Proxy Switch you can manage different configurations and simply switch over between these.
372 users
EndPointer
EndPointer: Advanced Endpoint Parser and Extractor EndPointer is a tool designed for developers, security researchers, and web application testers. It parses and extracts endpoints from web applications, providing a comprehensive view.
372 users
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,...)
370 users
Easy Favicon Scraper
Download the favicon of a website with 1 click
370 users
LocatorJS
A Firefox extension that allows you to click through from your React app to its code.
370 users
FlexHeaders - Modify HTTP Headers
A lightweight yet powerful extension to modify HTTP headers on the fly. Unleash the power of FlexHeaders, the ultimate extension for developers and security-conscious users
367 users
OLI Grid CSS
Draws a grid on top of a website.Highly Customizable. useful for checking designs that are supposed to follow a grid-based layout. ex:Bootstrap,Foundation,Skeleton,Yaml...
367 users
Trello Improvements
Improve your trello experience. Automatically count trello cards, enhance existing and add new features, UI improvements.
364 users
YouTube Miniplayer
Opens YouTube links in a draggable miniplayer on non-YouTube websites. Simple. Easy. No fuss.
364 users
HTML5 Universal Speed Hack
Speed up or slow down HTML5 and Unity games directly in the browser. Control functions like setTimeout, setInterval, Date.now, and more to precisely adjust game speed.
363 users
JSON Editor
A JSON Editor Extension based on the amazing JSON Editor Online https://github.com/josdejong/svelte-jsoneditor Source code: https://github.com/fractalf/json-editor-ex
362 users
Image Extractor
Extract all images and show in new tab
362 users
Font Size Decrease
Increase the font size on the current page with a single click.
359 users
Stark Accessibility Checker
Find and fix compliance issues in record time with automated checks and smart suggestions.
359 users
Element-Hider
Pressing control and shift keys, double click away any element you want to hide. Control + shift + z to undo.
358 users
Internet Speed Test
A browser action that test internet speed.
357 users
Offline Caching
Enable offline caching on any web site or app, allowing for usage even without Internet access.
356 users
Free Modern ChatGPT for Fire Fox - ZChatGPT
Fully Free extension to allow Firefox users to use ChatGPT in any tab without the need to open ChatGPT or having account.
356 users
AI Chat Export | Export ChatGPT, Claude and others
Easily export conversations from AI chat platforms like ChatGPT, Gemini, Claude, and more to Markdown files for offline storage, sharing or to upload to another AI chat and continue.
355 users
My IP Address Checker: Test IP + IPv6 + VPN
Displays IP address info and details like location + VPN usage when clicking on the IP button
351 users
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).
350 users
Frame
This extension connects web apps to Frame. Frame is an Ethereum wallet that runs as a native desktop application. It manages all of your accounts, tokens and items and allows to seamlessly and securely connect them any app.
350 users
OctoLinker
It turns language-specific module-loading statements like include, require or import into links. Depending on the language it will either redirect you to the referenced file or to an external website like a manual page or another service.
349 users
ScriptCat Beta
Everything can be scripted, allowing your browser to do more!
349 users