Most Popular Extensions

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JSONovich

Pretty-prints JSON content in the browser for easy, unobtrusive viewing.

Rated 4 out of 5 stars (38)
7,838 users

Video Assistant

Play embedded videos in external player

Rated 4 out of 5 stars (21)
7,799 users

Netflix Super Browse

CURRENTLY IN BETA

This extension adds a "Super Browse" hover link to the main Netflix Navigation. Hovering over this item will reveal Netflix's extended categories.

Please leave feedback if you find any bugs or have any suggestions.

Rated 4 out of 5 stars (4)
7,766 users

InstaDown: Instagram Image & Video Downloader

The extension adds a direct download button for images found on instagram user pages, and also for videos on single item popups.

Rated 4 out of 5 stars (6)
7,735 users

InfoNotary Configurator for Mozilla Requires Restart

Configures Mozilla for work with certificates issued by InfoNotary Plc.

Rated 5 out of 5 stars (2)
7,584 users

HDS Link Detector

This add-on automatically detects the HDS videos being played in browser and generates proper command line required for downloading videos with AdobeHDS.php script.

Rated 5 out of 5 stars (20)
7,574 users

Bkav SafeFacebook

Bkav SafeFacebook for Mozilla Firefox

Not yet rated
7,477 users

AdNauseam

Fight back against advertising surveillance

Rated 4 out of 5 stars (12)
7,404 users

YouTube in HD (720p, 1080p, 1440p, 2160p)

Watch YouTube in the full-HD quality or the highest available one

Rated 4 out of 5 stars (20)
7,234 users

Popup ALT Attribute

Popups alternate texts of images or others like NetscapeCommunicator(Navigator) 4.x.

Rated 4 out of 5 stars (50)
7,210 users

Vagex Firefox Add-on Requires Restart

View interesting YouTube videos whilst increasing your own viewership at the same time. The app will automatically view other member's YouTube videos in a playlist fashion.
Membership is free, simply run the Viewer and collect credits!

Rated 3 out of 5 stars (7)
7,191 users

Social Fixer

Social Fixer for Facebook fixes annoyances, adds features, and enhances existing functionality to make FB more fun and efficient. Filter the news feed, hide sponsored posts and political posts, hide parts of the page you don't want to see, and more!

Rated 4 out of 5 stars (147)
6,790 users

Pure URL

Removes garbage like "utm_source" from URLs

Rated 5 out of 5 stars (49)
6,771 users

Silent Block

Minimum and fast URL blocker.

Rated 5 out of 5 stars (16)
6,674 users

pinterest-guest

Allows to browse Pinterest without login/registration, removing the offending modal popup.
- unlock scrolling
- redirect to the categories from home page
- force show the search bar

Rated 4 out of 5 stars (18)
6,663 users

No need flash plugin on embeded youtube movies

No need flash plugin on embeded youtube movies

Rated 4 out of 5 stars (2)
6,572 users

start.me - Customize your New Tab Home Page

Customize your New Tab Home Page in Firefox with this powerful (cloud-based) add-on.

Organize all your Bookmarks/Websites, RSS/News feeds, notes, to-do's, mail & social updates in one place.

Works on any PC, mobile or tablet device.

Rated 4 out of 5 stars (82)
6,561 users

CookiesOK

CookiesOK aims to automatically accept cookies on websites that are affected by the recent (26-02-2011) EU cookie laws.

Rated 3 out of 5 stars (10)
6,535 users

Toggle JavaScript Enabled

Toggle whether JavaScript is enabled globally or not. Adds a menu entry and an icon to the URL/title bar.

Rated 4 out of 5 stars (7)
6,467 users

口水党

跨平台、跨浏览器、跨网站,一个软件、一个账号,就可以去吐槽全球;无视删帖、关闭评论;槽友互踩互赞、相互喷翔,热闹非凡;内容加密,防脱裤,安全可靠,拒绝查水表.业界良心,尊重用心隐私,绝不收集敏感数据。

Rated 4 out of 5 stars (4)
6,387 users