Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Windows
- Online
- Android
- iPhone
- Google Chrome
- Safari
- Opera
- Firefox




Browse 1,793 Mozilla Firefox Plugins, Add-ons and extension on AlternativeTo.




SyncWatch is a browser extension which lets you watch videos together with friends synchronously.



Honesty is NOT the go-to policy for everyone and in all settings. Focusing on feelings or self-interest may trump sincerity in the preservation of a relationship. And that's fine. Because truth is not necessarily what we need, at least not all the time.

Simplify your Sales KPI struggle with our unified dashboard, advanced automation and AI personalization.








A plugin to scroll to top and vice versa of a window. It is really beautiful and is highly customizable.

Offers advanced grammar and style checks for academic and technical writing, supports English and Spanish, corrects in MS Word and LaTeX while preserving formatting.




Trace is an open source web extension which has been built from the ground up to be an easy privacy toolkit for the browser.




Altair GraphQL Client. The only graphQL client editor you will need. Much like Postman for GraphQL with a lot of useful features when working with GraphQL.


Tab Groups with Panorama View. Lets you easily Group and manage Tabs visually, with tab hiding.

A Firefox & Chrome extension that provides pre-configured shortcuts with the possibility of manually adding new ones.






ChatGPT Infinity is a free (yet powerful) add-on that makes ChatGPT generate infinite answers on any topic!










This Zotero plugin allows the user to automatically generate bibliographies (as well as in-text citations and footnotes) for Microsoft Word. It allows the user to insert a new in-text citation into a manuscript, and the bibliography will be automatically updated to include the...



Free set of online tools for handling PDF files. Convert and edit your PDF files with incredible ease and speed!

ToTheZeroth News is a cloud-hosted RSS/Atom feed reading service. It was originally designed to replace Google Reader's smartphone-oriented interface, which was great not only for smartphones but also for desktop browser sidebars.

Abbriv is a free URL shortener service that provides companies and businesses with unique, customizable and secure links as well as analytics for the shortened links.




New Tab King is the best new tab experience your Firefox. Forget about the blank new tab - with New Tab King you get instant access to the sites you use the most, closed tabs, suggested sites and more - all personally adjusted to your needs.



Yahoo! Axis is a search browser that provides a completely new way to search and browse the web. It is available on three devices (PC, iPhone and iPad) and can be used on its own or together for a connected device experience.







WhatCampaign is a browser plug-in that replaces utm_* parameters in URLs with a string of random characters.
