Apps with 'Legacy Firefox Addon' feature

  1. Brave Web Browser is a fast, free, secure web browser with a built-in ad blocker*, tracking and security protection, and optimized data and battery experience. *What is Brave Ad Replacement?
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    • FreemiumProprietary
    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Windows S
    • Windows Phone
    • iPad
    • Apple Watch
    • Android Wear
    • Kindle Fire
    Microsoft OneNote, part of the Microsoft Office Suite, is a digital notebook application that gives people one place to gather notes and information.
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  2. Zotero is a free, easy-to-use Firefox/Chrome extension or standalone program to help you collect, organize, manage, search and cite your research sources directly in your favourite word processor, with 300 MB free online storage.
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  3. SimpleScreenRecorder is a Linux screen recorder that supports X11 and OpenGL. It is easy to use, feature-rich, and has a Qt-based graphical user interface. It can record the entire screen or part of it, or record OpenGL applications directly.
  4. ScrapBook is a Firefox extension, which helps you to save Web pages and manage the collection. Key features are lightness, speed, accuracy and multi-language support.

    Discontinued

    The extension is not compatible with Firefox 57. It still works on XUL-based Firefox forks like Waterfox

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  5. Torrends.to combines popular torrent sites and specialized private trackers in a torrent multi-search. Find torrents on The Pirate Bay, RARBG, 1337x, Limetorrents and other popular sites. Easily add your favorite torrent sites to the search.

    Use with caution

    Flagged as potentially breaking copyright or other laws
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  6. Burp Suite is an integrated platform for performing security testing of web applications.
    • FreeProprietary
    • Mac
    • Windows
    • Linux
    • Android
    • Waterfox
    • Pale Moon
    • Firefox
    Fix the web. Gets rid of a site's cookies and LocalStorage as soon as you close its tabs. Protects against trackers and zombie-cookies. Trustworthy services can be whitelisted.

    Discontinued

    The extension is no longer maintained and it doesn't work on Firefox 55 or newer. It still works on XUL-based Firefox forks like Waterfox and Pale Moon

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  7. ScrapBook X is a Firefox addon based on ScrapBook Plus and also integrating several features from the latest versions of ScrapBook. Features

    Discontinued

    The extension is not compatible with Firefox 57 or newer. Its successor is WebScrapBook . The extension still works on XUL-based Firefox forks like Waterfox and Pale Moon

    • FreeProprietary
    • Mac
    • Windows
    • Linux
    • Chrome OS
    • Google Chrome
    • Waterfox
    • Pale Moon
    • Firefox
    Click&Clean is a free, fast and easy-to-use extension for Google Chrome and Mozilla Firefox that can be used as a powerful private data Cleaner.
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    • FreeProprietary
    • Mac
    • Windows
    • Linux
    • Google Chrome
    • OpenUserJS
    • Safari
    • Greasy Fork
    • Opera
    • Firefox
    • Tampermonkey
    Download Facebook (Album & Video), Instagram, Pinterest, Twitter, Ask.fm, Weibo Album. Support: Facebook(Album, Photos of, Tagged photos, Search, Group, Message), Instagram(Photo, Video, Album), Pinterest, Twitter, Ask.fm, Weibo
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Waterfox
    • Pale Moon
    • Thunderbird
    • Firefox
    ReminderFox displays and manages lists of reminders and ToDo's. ReminderFox makes sure you remember all of your important dates via easy-to-use lists, alerts, and alarms, right in your browser without the need for a separate calendar program. Never forget again!

    Discontinued

    The developers announced that the extension will be no longer updated because it's not compatible with Firefox 57 and later. The extension still works on XUL-based Firefox forks like Waterfox and Pale Moon

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    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Waterfox
    • Pale Moon
    • Firefox
    FireSSH is a free, cross-platform SSH terminal client for Mozilla Firefox. Written entirely in Javascript!

    Discontinued

    The extension is not working on Firefox 57 and later. The developer ended support and development of FireSSH. The extension still works on XUL-based Firefox forks like Waterfox and Pale Moon

    • FreeProprietary
    • Mac
    • Windows
    • Linux
    • Pale Moon
    • Thunderbird
    • SeaMonkey
    • Firefox
    Download Status Bar manages every aspect of your downloads (Launch, Show, Scan, Send To, Rename, Checksum, Pause, Resume, Cancel, Clean, Delete), generates Statistics from your Download actions, keeps the History of your previous session downloads and much more.

    Discontinued

    The extension is not compatible with Firefox 57 and later. Last version, 15.0.0.1, relesead in September 2016, still works on XUL-based Firefox forks like Waterfox and Pale Moon

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  8. Bamboo is a feed reader add-on for https://addons.palemoon.org/addon/bamboo-feed-reader/ (and Thunderbird & Mozilla Firefox - Versions 3.0 - 45.* & ? - 56.

    Discontinued

    The extension is no longer updated and it doesn't work on Firefox 57 and later. The extension still works on XUL-based Firefox forks like Waterfox and Pale Moon

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