Apps with 'Firefox Extension' feature

All apps in Apps with 'Firefox Extension' feature category. Use the filters below to narrow down your search. 
Copy a direct link to this comment to your clipboard
  1. Bitwarden icon
     1339 likes

    Open-source password manager with AES-256 encryption and device sync. Store and access encrypted logins across platforms like iOS and Android.

    • Password Manager
    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Apple Watch
    • Snapcraft
    • Microsoft Edge
    • Vivaldi
    • Google Chrome
    • Flathub
    • Microsoft SQL Server
    • Tor Browser
    • Safari
    • F-Droid
    • Software as a Service (SaaS)
    • Flatpak
    • Cloudron
    • Opera
    • Chocolatey
    • Mono
    • Brave
    • Mozilla Firefox
    • Docker
    Bitwarden screenshot 1
    215 alternatives
    4.8
    Excellent173 reviews
  2. uBlock Origin icon
     1797 likes

    This efficient browser add-on blocks ads, trackers, and malware by default employing various filter lists, acting as a comprehensive wide-spectrum blocker.

    • Ad Blocker
    • FreeOpen Source
    • Microsoft Edge
    • Vivaldi
    • Google Chrome
    • Pale Moon
    • Thunderbird
    • Opera
    • Node.JS
    • Chromium
    • Mozilla Firefox
    uBlock Origin screenshot 1
    108 alternatives
    4.7
    Excellent107 reviews
  3. Joplin icon
     862 likes

    Open source note-taking app with Markdown support, to-do integration, and synchronization with cloud services like Dropbox and OneDrive.

    • Note-taking Tool
    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • AppImageHub
    • Snapcraft
    • Google Chrome
    • Flathub
    • PortableApps.com
    • F-Droid
    • Cloudron
    • Homebrew
    • Chocolatey
    • Termux
    • Mozilla Firefox
    Desktop and mobile apps
    106 alternatives
    4.5
    Excellent133 reviews
  4. DuckDuckGo icon
     1551 likes

    Privacy-focused search engine offering Zero-click Info, instant answers, and more, built from open-source software for a user-friendly experience.

    • Web Search Engine
    • FreeProprietary
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Microsoft Edge
    • Vivaldi
    • Google Chrome
    • Safari
    • F-Droid
    • Yandex Browser
    • Tor
    • Opera
    • Mozilla Firefox
    DuckDuckGo Homepage
    112 alternatives
    4.0
    Very Good83 reviews
  5. MEGA icon
     919 likes

    Cloud-storage service with end-to-end encryption, selective synchronization, and shared folders without ads. Works offline and supports 2FA.

    • Cloud Storage Service
    • FreemiumProprietary
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • Windows Phone
    • iPad
    • Google Chrome
    • Mozilla Firefox
    MEGA screenshot 1
    202 alternatives
    3.6
    Good34 reviews
  6. ActivityWatch icon
     552 likes

    Open-source app tracking time on devices, maintaining privacy and versatility, with features like productivity insights, Pomodoro timers, and local data storage.

    • Time Tracking Tool
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Android
    • Android Tablet
    • Self-Hosted
    • Google Chrome
    • Rust
    • Python
    • Chromium
    • Mozilla Firefox
    ActivityWatch screenshot 1
    ActivityWatch screenshot 2
    ActivityWatch screenshot 3
    97 alternatives
    4.7
    Excellent73 reviews
  7. Zotero icon
     472 likes

    Zotero is a free, easy-to-use tool to help you collect, organize, share research and cite your research sources directly in your favourite word processor, with 300 MB free online storage.

    • Research Manager
    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Microsoft Edge
    • Google Chrome
    • Safari
    • Microsoft Word
    • Google Docs
    • LibreOffice
    • Mozilla Firefox
    Zotero screenshot 1
    79 alternatives
    4.3
    Very Good23 reviews
  8. Floorp icon
     123 likes

    The Floorp project is a project that seeks privacy and a balance between anonymity and the public nature of the web.

    • Web Browser
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Flathub
    • Flatpak
    • Snapcraft
    Floorp screenshot 1
    136 alternatives
    4.8
    Excellent38 reviews
  9. Feedly icon
     1871 likes

    Organize and read content from RSS feeds into a magazine-like experience, simple sharing options, and seamless access across all devices.

    • RSS Reader
    • FreemiumProprietary
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Google Chrome
    • Safari
    • Kindle Fire
    • Mozilla Firefox
    Feedly screenshot 1
    310 alternatives
    3.4
    Fair25 reviews
  10. Waterfox icon
     411 likes

    Waterfox is an open-source, privacy-focused browser based on the popular open source browser with a red panda as a mascot. It is designed to be a drop-in replacement for said browser that offers enhanced privacy features, performance improvements, and customizability while...

    • Web Browser
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Android
    • Android Tablet
    • Flathub
    Desktop
    83 alternatives
    3.8
    Good40 reviews
  11. Adblock Plus icon
     1745 likes

    Adblock Plus is a free extension that allows you to - among other things - block annoying ads, disable tracking and block domains known to spread malware.

    • Ad Blocker
    • FreemiumOpen Source
    • iPhone
    • Chrome OS
    • iPad
    • Microsoft Edge
    • Internet Explorer
    • Vivaldi
    • Google Chrome
    • Safari
    • Yandex Browser
    • Opera
    • Mozilla Firefox
    Adding a filter
    119 alternatives
    2.7
    Poor26 reviews
  12. Wayback Machine icon
     317 likes

    With the power of the Wayback Machine, you can go back in time to see how a website has changed and evolved through the history of the Web.

    • Web Archiving Service
    • FreeProprietary
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Google Chrome
    • Safari
    • Mozilla Firefox
    Wayback Machine screenshot 1
    26 alternatives
    3.9
    Good14 reviews
  13. DownThemAll icon
     834 likes

    DownThemAll (or just dTa) is a powerful yet easy-to-use browser extension for Firefox, Chrome and Opera that adds new advanced download capabilities to your browser. DownThemAll lets you download all the links or images contained in a webpage and much more: you can refine your...

    • Download Manager
    • FreeOpen Source
    • Microsoft Edge
    • Google Chrome
    • Pale Moon
    • Mozilla Firefox
    DownThemAll screenshot 1
    109 alternatives
    4.5
    Excellent16 reviews
  14. addy.io icon
     135 likes

    Open-source service offering unlimited anonymous email aliases, encrypted forwarding, spam protection, and anonymous replies to keep your identity private.

    • Disposable Email Service
    • FreemiumOpen Source
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Microsoft Edge
    • Google Chrome
    • Safari
    • F-Droid
    • Software as a Service (SaaS)
    • Mozilla Firefox
    Manage aliases from the dashboard
    109 alternatives
    4.7
    Excellent16 reviews
  15. Privacy Badger icon
     314 likes

    Privacy Badger is a browser-add on tool that analyzes sites to detect and disallow content that tracks you in an objectionable, non-consensual manner. When you visit websites, your copy of Privacy Badger keeps note of the "third party" domains that embed images...

    • Ad Blocker
    • FreeOpen Source
    • Microsoft Edge
    • Google Chrome
    • Opera
    • Mozilla Firefox
    Overview of Privacy Badger extension
    66 alternatives
    4.7
    Excellent16 reviews
  16. NoScript icon
     359 likes

    The NoScript Firefox extension provides extra protection for Firefox, Seamonkey and other mozilla-based browsers: this free, open source add-on allows JavaScript, Java, Flash and other plugins to be executed only by trusted web sites of your choice (e.g. your online bank).

    • Privacy Tool
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • BSD
    • Google Chrome
    • SeaMonkey
    • Mozilla Firefox
    Diablog of blocked scripts
    23 alternatives
    4.1
    Very Good12 reviews
  17. Dark Reader icon
     169 likes

    This eye-care extension enables night mode creating dark themes for websites on the fly. Dark Reader inverts bright colors making them high contrast and easy to read at night.

    • Dark Mode Enforcer
    • FreeOpen Source
    • iPhone
    • iPad
    • Microsoft Edge
    • Google Chrome
    • Safari
    • Thunderbird
    • Mozilla Firefox
    Dark Reader screenshot 1
    23 alternatives
    4.6
    Excellent22 reviews
  18. SingleFile icon
     92 likes

    SingleFile is an extension that helps you to archive a complete page into a single HTML file or HTM-File with Google Chrome and Chromium.

    • FreeOpen Source
    • Microsoft Edge
    • Google Chrome
    • Safari
    • Mozilla Firefox
    SingleFile screenshot 1
    11 alternatives
  19. LanguageTool icon
     184 likes

    An AI-powered proofreading tool supports over 20 languages, offering free and premium versions with extensive grammar checks across multiple apps.

    • Grammar Checker
    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • iPhone
    • iPad
    • Microsoft Edge
    • ONLYOFFICE
    • Google Chrome
    • Microsoft Outlook
    • Safari
    • Visual Studio Code
    • Microsoft Word
    • Eclipse
    • TinyMCE
    • Google Docs
    • Thunderbird
    • Vim
    • Sublime Text
    • GNU Emacs
    • Opera
    • Gmail
    • LibreOffice
    • Apache OpenOffice
    • Mozilla Firefox
    • LibreOffice - Writer
    • Cloudron
    LanguageTool screenshot 1
    93 alternatives
    3.8
    Good20 reviews
  20. Ecosia icon
     149 likes

    Ecosia is a green search engine that donates at least 80% of its profits from search ad revenue and online shopping to a reforestation program, currently in Burkina Faso. In November 2015 Ecosia celebrated 3 million planted trees and $5 Million donated for the environment.

    • Web Search Engine
    • FreeProprietary
    • Online
    • Android
    • iPhone
    • Android Tablet
    • Windows Phone
    • iPad
    • Microsoft Edge
    • Google Chrome
    • Mozilla Firefox
    • HUAWEI AppGallery
    Ecosia screenshot 1
    111 alternatives
    4.1
    Very Good16 reviews
  21. Decentraleyes icon
     142 likes

    Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Android
    • Android Tablet
    • Google Chrome
    • Pale Moon
    • Opera
    • Chromium
    • Mozilla Firefox
    Decentraleyes screenshot 1
    4 alternatives
  22. HTTPS Everywhere icon
     358 likes

    HTTPS Everywhere is a browser extension produced as a collaboration between The Tor Project and the Electronic Frontier Foundation. It encrypts your communications with a number of major websites.

    • Discontinued
    • Privacy Tool
    • FreeOpen Source
    • Online
    • Vivaldi Browser
    • Google Chrome
    • Yandex.Browser
    • Opera
    • Chromium
    • Firefox
    HTTPS Everywhere screenshot 1
    9 alternatives