1. xBrowserSync is a completely free and open source tool for syncing your bookmarks and browser data between your various browsers and devices. xBrowserSync respects your privacy and gives you complete anonymity — no sign up is required and no personal data is ever collected.
    show more
  2. Reddit Enhancement Suite (RES) provides several add-ons to enhance your Reddit browsing experience - each of which is configurable. You can enable/disable any of the modules, and most of them have their own options that can also be personalized.
    show more


    • FreemiumProprietary
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Blackberry
    • Windows S
    • Android Tablet
    • Windows Phone
    • iPad
    • Self-Hosted
    • Google Chrome
    • Firefox
    Private File Sharing, Sync and Mobile Access for Home and Business. Access, Sync and Share ALL docs, photos, music and videos from anywhere. No Storage Limits. No Security Worries. No Uploading. Limited values and users without PRO subscription.
    show more
  3. Save and restore the state of windows and tabs. Automatic saving is also possible, so it can be used as a backup when accidentally closing the window.
  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

    show more
  5. LeechBlock is a simple free productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.
    show more
  6. Disconnect Search is a meta-search-engine browser extension that lets you search privately using your favorite search engine.
  7. As a company, Qlearly is focused around increasing your productivity online. We want to make it easier for you to access the information you need, when you need it. From accessing or searching through your bookmarks, managing your tabs, to creating a To Do list.
    show more
    • FreemiumProprietary
    • Mac
    • Windows
    • Linux
    • Android
    • Chrome OS
    • Android Tablet
    • Google Chrome
    • Firefox
    Vysor lets you view and controls your Android on your computer.
  8. Iridium (former YouTube Plus) is an extension built to improve the user experience on the new YouTube Material layout. As of January of 2019, the development is discontinued. Firefox and Chrome Versions are out of date and you must manually sideload the addon.
    • FreeProprietary
    • Online
    • Android
    • Internet Explorer
    • Google Chrome
    • Yandex.Browser
    • Opera
    • Firefox
    WOT is a free internet security addon for Firefox, Internet Explorer, Chrome, and Safari. It uses user ratings to grade sites based on their trustworthiness, respect of user privacy, reliability, and child safety.

    Warning

    Accused to sell the browsing history of its users by German national television.

    show more
  9. Watch2Gether lets groups of users watch videos in-sync together. At the same time users can communicate through a build-in chat-room and use web cam and audio chat. Available media sources are Youtube, Vimeo, Dailymotion and Soundcloud.
  10. Bookmark, Archive, Screenshot & Markup - All-In-One Web Collector, must-have research tool Diigo is the #1 extension for annotating, archiving and bookmarking webpages. With this easy-to-use tool, you can 1. Bookmark links to archive webpages or to read later
    show more
  11. Redesigned new tab page featuring your bookmarks, apps, most visited, recently closed in a custom layout. Features: - Simple, clean design - Highly customizable - Fast loading and lightweight
    show more
    • Mac
    • Windows
    • Linux
    • Online
    • Internet Explorer
    • Google Chrome
    • Firefox
    Free web traffic metrics, top sites lists, site demographics, hot urls, and more... Alexa is useful resource for people to discover information about websites. You can use Alexa to discover how popular a site is, to find new sites, to learn who owns a site and a lot more.
    show more