Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- Google Chrome
- Firefox



Browse 1,873 Mozilla Firefox Plugins, Add-ons and extension on AlternativeTo including popular Mozilla Firefox options.




Analytics Inspector provide an easy way to validate web analytics and marketing integration and offers a great way to quickly validate the instrumentation via unique and simplified user interface.



Bilingual Subtitles for the Netflix Web App. An actively maintained fork with various bug fixes and improvements to the original NflxMultiSubs.



Free SERP analysis extension for Chrome and Firefox. Extracts 25+ data points from Google search results including content metrics, link profiles, and schema markup. Generates competitor reports and exports to Excel, CSV, JSON, or Markdown.




D3wasm is an experiment to port the id Tech 4 engine (aka. “Doom 3 Engine”) to Emscripten / WebAssembly and WebGL, allowing to run games such as Doom 3 inside modern Web Browsers.




Firefox extension that makes comparison pages of wikipedia a lot more usable by making it possible to remove and restore rows in each table with a simple mouse click.

Select any text and get instant AI answers powered by Google Gemini. Extract complete YouTube transcripts with live subtitles, track Amazon product prices with history charts.




Easily generate stunning and customisable QR codes directly from your browser for free using 10+ generation modes and powerful tools.




🌐 With this powerful extension, you can easily connect YouTube and NotebookLM to create organized, AI-ready notes and summaries. It supports YouTube videos, playlists, channels, and even search results.








Discover a streamlined combination of tools to help your business thrive. Record all billable hours and expenses from a single interface, integrate with your favourite project management software and improve your resourcing with comprehensive reporting dashboards.




While really simple and easy to use, the functionalities of the extension make it nothing less than an authentic smart note-taking extension for your browser.




BlockZilla is a browser extension that automatically removes all sponsored posts Facebook, Reddit, and LinkedIn. It also removes promoted tweets on Twitter, as well as ads on Amazon and eBay.

A full-featured privileged access security solution that helps IT teams to securely store, protect, and automate the management of all high privileged account passwords, keys, and identities.


Get bugs fixed faster with complete bug reports. Share one link, devs instantly see what happened and why, with screenshots, logs, network calls, and user actions.




Firefox Nightly 57 removed the share feature because it was using a non official API.


Teamflect is an all-in-one performance management and employee engagement platform built natively for Microsoft Teams and Outlook.




Search Word position across your tabs body or title/url , then list up in sidepanel.


Tab Mover is a Firefox Addon for quickly moving tabs between windows via the context menu. It can move tabs between two normal windows, two windows in incognito mode and from a normal window to an window in incognito mode.

Messenger for Facebook lets you bring Messenger right into your browser to chat with your friends.
Tired of opening two dozen IMDB tabs while hunting for something to watch on Netflix, I built a browser extension that displays ratings and hides low-rated programs for me.




Trebble’s online audio editor makes it possible for the average person to create spoken-word audio that sounds professionally produced.




Only Dedicated Data Science Lab with data scientists experienced in fortune five hundred companies, billion dollar unicorn startup and large investment firm backed companies.



Faircado is a Berlin-based startup that provides the first AI-powered secondhand shopping assistant in a form of browser extension.

