Cost / License
- Free
- Open Source (MIT)
Application types
Platforms
- Online
- Microsoft Edge
- Google Chrome
- Firefox


Browse 1,831 Mozilla Firefox Plugins, Add-ons and extension on AlternativeTo including popular Mozilla Firefox options.


Authenticator generates two-factor authentication (2FA) codes in your browser. Use it to add an extra layer of security to your online accounts.



Find, filter, and download images from web pages, with options to sort by size, pixel dimensions or URL, bulk download, preview, and copy source links.




Solcial is a decentralised social network built for privacy and freedom of speech. It give users the ability to interact with each other without fear of censorship and to allow content creators to monetize their work fairly at market value.







Microsoft Power Automate is an advanced automation platform. It offers a wide range of features, including AI-powered automation, RPA, BPA, DPA, and process/task mining.




Passbolt is an open source password manager for teams. It allows to securely share and store credentials. For instance, the wifi password of your office, or the administrator password of a router, or your organisation social media account password, all of them can be secured...




A simple web extension that redirects requests to privacy friendly alternatives. The successor fork is LibRedirect.




Padloc not only helps you remember all your passwords, it also securely stores credit cards, notes, documents and more!




Reddit Enhancement Suite is a community-driven unofficial browser extension for Reddit.




Mailvelope is a browser extension that allows to exchange encrypted emails following the OpenPGP encryption standard.

MetaMask is a browser extension and mobile app that lets you manage Ethereum-based assets and interact with decentralized apps (dapps).




AI-enhanced real-time collaboration in a unified workspace with tasks, document chat, AI File Chat, and project studio. Get instant answers and sync across devices.




The Psono password manager keeps hackers out and your passwords secure. Psono is free and open source and available for Windows, Linux and Mac. Organize your passwords now!




Your bookmark manager with privacy at heart. Brace.to helps you save links to everything and visit them later easily, anytime, on any of your devices. Powered by Stacks technology, all your saved links are encrypted, and only you can decrypt them and see the content inside.




Privacy Possum monkey wrenches common commercial tracking methods by reducing and falsifying the data gathered by tracking companies.


Track price history and receive alerts for price drops on Amazon products worldwide, with support for over 5 billion items and international locales.




Camelcamelcamel.com provides an easy way to track Amazon product prices, get alerted when prices drop and even see how prices have changed with history charts and other helpful details.




Lighthouse is an open-source, automated tool for improving the quality of web pages. You can run it against any web page, public or requiring authentication. It has audits for performance, accessibility, progressive web apps, SEO and more.




Track time on projects, analyze productivity with detailed reports, manage tasks, and collaborate across web, desktop, and mobile with real-time sync.




Adds hover zoom for image enlargement, a customizable viewer, rule-based image detection, and a gallery to organize, bookmark, and manage images.






Animated GIF platform with search, creation, sharing, animated stickers, pop culture content, clipboard support, and social media integration for reactions.




Stylish lets you customize any website with custom user styles (themes for websites). Choose from the largest userstyles library to change the color scheme, background, and skin for Google, Facebook, YouTube and many, many more sites.




Redirector is a browser add-on for Firefox, Chrome, Edge and Opera. The add-on lets you create redirects for specific webpages, e.g. always redirect http://bing.com to http://google.com. It was originally done by request for someone on the Mozillazine forums.



