Apps to Firefox Extensions

Discover apps and services to Firefox Extensions.

Provides browser extensions for seamless integration with Mozilla Firefox, allowing easy access to StumbleUpon features.

Best apps to Firefox Extensions

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Mozilla Add-ons

Mozilla Add-ons

Web Browsers Web Browser Add-on Repository
Mozilla Add-ons is the official repository for extensions and themes to customize and enhance the Firefox web browser. It offers a vast and diverse collection to personalize your browsing experience.
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Open Source
Vast selection of extensions and themes
Google +1

Google +1

Social & Communications Social Network
Google+ was a social networking service operated by Google. Launched in 2011, it aimed to organize online sharing around interest-based communities and allow for differentiated communication through its 'Circles' feature. While it integrated deeply with other Google services, it struggled to gain widespread user adoption compared to competitors and was eventually shut down for consumers in 2019.
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Free
Innovative 'Circles' feature for granular content sharing co...
Wayback Machine

Wayback Machine

Online Services Online Service
The Wayback Machine, part of the Internet Archive, is a digital archive of the World Wide Web and other information on the Internet. It allows users to visit archived versions of web pages they may have missed, including those that have been changed or removed.
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Free
Extensive archive of historical web pages.
Better Pop Up Blocker

Better Pop Up Blocker

Web Browsers Browser Extension
Better Pop Up Blocker is a straightforward browser extension designed to eliminate intrusive pop-up and pop-under windows, enhancing your browsing experience. It works discreetly in the background across various websites.
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Free
Effectively blocks intrusive pop-up and pop-under windows.
ChangeMon.Com

ChangeMon.Com

News & Books Web Application
ChangeMon.Com is a comprehensive online service for monitoring website content changes, providing users with real-time alerts via email, browser extensions, and IFTTT integration. It helps track modifications on web pages, focusing on visual and content-based differences, ensuring users are always up-to-date with websites they follow.
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Free
Multiple notification options (email, browser extensions, IF...
Lobsters

Lobsters

News & Books Social News
Lobsters is a technology-focused social news site where users submit links and engage in discussions. It serves as a curated platform for sharing and discovering technical articles, essays, and news relevant to the tech community, emphasizing quality discourse.
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Open Source
High signal-to-noise ratio due to curated community and mode...
WebSite-Watcher

WebSite-Watcher

News & Books Desktop Application
WebSite-Watcher is a powerful and versatile tool designed to automatically check websites for updates and changes. It is ideal for monitoring content, prices, news, or any other information on web pages without manual checking. The software highlights modified text and provides flexible notification options.
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Commercial
Highly accurate and customizable change detection.
Wordnik

Wordnik

Education & Reference Web Application
Wordnik is a comprehensive online English dictionary offering more than just definitions. It provides a rich linguistic resource with extensive examples of word usage, pronunciations, related words, and a vibrant community for language enthusiasts.
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Free
Extensive real-world usage examples provide valuable context...
Firefox Marketplace

Firefox Marketplace

File Sharing Software Repository
Firefox Marketplace served as an official distribution platform for applications for the Web Platform, including Firefox OS. It aimed to provide a curated selection of web apps and extensions, facilitating discovery and installation for users within the Firefox ecosystem.
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Open Source
Based on open web standards.
LinkCollector

LinkCollector

Web Browsers Desktop Application
LinkCollector was a portable bookmark management solution designed to help users organize, manage, and synchronize their bookmarks across different browsers and machines. It offered features like duplicate bookmark detection and organizational tools.
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Commercial
Portable, runs without installation from USB drives.
Zevera

Zevera

Backup & Sync Web Application
Zevera is a premium multihoster service providing direct download links from over 100 file-sharing sites. It simplifies downloading by consolidating access and offering features like a built-in torrent client, anonymity, and resume support.
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Commercial
Access to premium speeds from over 100 file hosters with one...
Kigo Video Downloader for Mac

Kigo Video Downloader for Mac

Video & Movies Desktop Application
Kigo Video Downloader for Mac is a comprehensive tool designed for Mac users to effortlessly download videos from a wide array of online platforms, including YouTube, Vimeo, Dailymotion, and more. It also features built-in conversion capabilities.
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Free
Supports downloading from multiple video platforms
atchus!

atchus!

News & Books Web Application
atchus! is a feature-rich online platform and feed reader designed to revolutionize how you consume web content. It offers a visually organized way to manage your bookmarks, follow custom feeds, and discover new content, significantly speeding up your web surfing experience.
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Free
Unique visual organization and speed focus.
LinkSnappy

LinkSnappy

Audio & Music Download Manager
LinkSnappy is a premium download manager designed to simplify access to files hosted across numerous file-sharing platforms. It acts as a universal key, allowing users to download content at full speed from multiple sources with a single premium account, bypassing individual site limitations and enhancing the overall download experience.
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Commercial
Access to multiple premium file hosts with one account.
Feedbro

Feedbro

News & Books Browser Extension
Feedbro is a powerful and versatile browser extension for Chrome and Firefox that transforms your web browser into a local feed reader. It allows you to easily follow updates from websites, blogs, and social media platforms through RSS, Atom, and RDF feeds, providing a centralized and ad-free experience for consuming news and content.
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Free
Operates locally within the browser, enhancing privacy.
Apertium

Apertium

Education & Reference Machine Translation Software
Apertium is a free, open-source machine translation platform utilizing rule-based methods. It provides versatile translation capabilities, including online translation, browser integration, and potential for localized content.
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Open Source
High translation quality for supported language pairs.
Strokeit

Strokeit

OS & Utilities OS Utility
StrokeIt is a powerful and highly customizable mouse gesture recognition and command processing engine for Windows. It allows users to execute commands, launch applications, or perform various actions by simply drawing shapes with the mouse.
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Free Personal
Highly customizable gesture recognition.
JonDoFox

JonDoFox

Security & Privacy Web Browser
JonDoFox is a portable, preconfigured version of Firefox designed for anonymous web browsing. It integrates with the JonDonym anonymity network, offering enhanced privacy and security features to prevent tracking and fingerprinting.
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Open Source
Pre-configured for strong privacy and anonymity.
Alluc

Alluc

Online Services Online Service
Alluc was a popular link-sharing platform that acted as a search engine and index for content like TV shows, movies, and music videos, aggregating links from various online sources for streaming and download.
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Free
Provides centralized access to links for a wide range of med...
Sleipnir

Sleipnir

Social & Communications Web Browser
Sleipnir is a versatile web browser designed for seamless integration between desktop and mobile devices. Offering a range of customization options, robust privacy features, and built-in tools like an RSS reader and social media integrations, Sleipnir aims to provide a tailored browsing experience.
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Free
Extensive customization options for a personalized browsing ...
Firefox Developer Edition

Firefox Developer Edition

Development Web Browser
Firefox Developer Edition is a specialized version of the Firefox browser tailored for web developers. It offers the latest features and tools earlier than the standard release, providing a stable yet cutting-edge environment for building and testing websites.
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Open Source
Receive latest developer features early
Terms of Service Didn't Read

Terms of Service Didn't Read

Security & Privacy Browser Extension
Terms of Service Didn't Read (ToS;DR) is a community-driven project that helps users understand the terms of service and privacy policies of online services and websites. It provides summaries and ratings, highlighting important clauses that users might otherwise miss.
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Open Source
Simplifies complex legal documents into understandable summa...
Bing

Bing

Office & Productivity Online Service
Bing is a comprehensive web search engine developed by Microsoft, designed to help users find information directly and efficiently. It goes beyond simple keyword searching by providing intelligent answers, integrated services, and a reward system that incentivizes its usage. With features like visual search, local business information, and integration with other Microsoft services, Bing aims to offer a more task-oriented and visually rich search experience compared to its competitors.
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Free
Rewards program for earning points while searching.
Privacy Badger

Privacy Badger

Security & Privacy Browser Extension
Privacy Badger is a free browser extension developed by the Electronic Frontier Foundation (EFF) that automatically learns to block invisible trackers.
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Open Source
Effectively blocks invisible trackers using a unique heurist...
wallabag

wallabag

Backup & Sync Server-Side
wallabag is a self-hostable open-source application designed for saving web pages for offline reading, providing users with complete control over their saved content.
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Open Source
Complete data ownership and control through self-hosting.
Firefox Nightly Build

Firefox Nightly Build

Web Browsers Web Browser
Firefox Nightly is the bleeding-edge development channel for the Firefox web browser. It provides early access to experimental features, bug fixes, and performance improvements, allowing users to test and provide feedback on the very latest browser technology before it's released to the public. It's ideal for developers, testers, and enthusiasts who want to experience the future of Firefox.
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Open Source
Early access to cutting-edge features
pyLoad

pyLoad

File Sharing Download Manager
pyLoad is a free and open-source download manager written in Python, designed to be lightweight and highly customizable. It supports numerous file hosting sites, captcha recognition, and can be accessed remotely via a web interface.
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Open Source
Supports a very large number of file hosting services
StumbleUpon

StumbleUpon

Social & Communications Web Application
StumbleUpon was a popular discovery engine that personalized web content recommendations based on user interests and activity. It helped users discover new websites, videos, images, and information.
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Free
Excellent for discovering new and unexpected content.
Feeder

Feeder

News & Books Web Application
Feeder is a versatile web-based RSS feed reader designed to help users track and manage updates from their favorite websites, blogs, and news sources in one centralized location. Available as a web application and browser extensions, it offers a clean interface and powerful features for content aggregation.
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Freemium
Clean and intuitive user interface.
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