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LanguageTool Grammar Checker Compatible with Firefox 57+ Featured

With this extension you can check text with the free style and grammar checker LanguageTool. It finds many errors that a simple spell checker cannot detect, like mixing up there/their, a/an, or repeating a word.

Rated 4 out of 5 stars (22)
31,963 users

New Tab Tools Featured

Customizes the new tab page. Add more tiles. Have a background image. Set new tile images and titles. See recently closed tabs. And more...

*The first WebExtension version has been in the AMO review queue for two weeks! Don't blame me.*

Rated 4 out of 5 stars (234)
34,215 users

Prevent Tab Overflow Featured

Make sure your tabs stay visible all the time.

Rated 5 out of 5 stars (70)
8,611 users

Speed Dial (Lite) Compatible with Firefox 57+ Featured

Access to your favorite websites via an stylish speed dial!

Rated 3 out of 5 stars (14)
2,605 users

FindBar Tweak Featured

Between simple tweaks such as placing the findbar in the top corner, to the powerful "Find in All Tabs" tool, it has everything to make the Find Toolbar a powerful and accessible research tool!

Rated 5 out of 5 stars (271)
31,156 users

YouTube High Definition Featured

YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.

Rated 5 out of 5 stars (247)
390,229 users

Reverse Image Search Compatible with Firefox 57+ Featured

Capture, Reverse Image Search is a powerful capturing reverse image search tool built on top of TinEye engine.

Rated 4 out of 5 stars (15)
9,606 users

NoScript Security Suite Requires Restart Featured

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

Rated 5 out of 5 stars (1,585)
1,790,267 users

Easy Youtube Video Downloader Express Compatible with Firefox 57+ Featured

"Best Youtube Video Downloader", Only one with 1080p Full-HD and 256kbps MP3 Direct Links. A clean, fast and simple addon for superfast and easy downloads in FLV, 3GP, MP3, MP4, 720p, 1080p qualities on Youtube pages.

Rated 4 out of 5 stars (1,263)
217,790 users

Web Clipper: Easy Screenshot Featured

Easy Screenshot is an easy to use screen capture tool. Simply press one of the context menu items to capture entire or a portion of your screen.

Rated 4 out of 5 stars (29)
9,417 users

Pearltrees Featured

Pearltrees lets you organize all your interests.

Rated 5 out of 5 stars (250)
9,901 users

AdBlocker Ultimate Compatible with Firefox 57+ Featured

Free and improved ad blocker. Completely remove ALL ads. No "acceptable" ads or whitelisted advertisers, block tracking, block malware!

Rated 5 out of 5 stars (2,116)
361,632 users

VimFx Featured

Short, Vim-style keyboard shortcuts for browsing and navigation, for a near mouseless experience.

Rated 5 out of 5 stars (197)
19,894 users

Google search link fix Compatible with Firefox 57+ Featured

This extension prevents Google and Yandex search pages from modifying search result links when you click them. This is useful when copying links but it also helps privacy by preventing the search engines from recording your clicks.

Rated 5 out of 5 stars (225)
59,998 users

DownThemAll! Featured

The first and only download manager/accelerator built inside Firefox!

Rated 4 out of 5 stars (1,800)
947,782 users

Blur Featured

Protect your Passwords, Payments, and Privacy.

Rated 4 out of 5 stars (782)
84,546 users

Tab Scope Requires Restart Featured

Preview and navigate tab contents through popup.

Rated 4 out of 5 stars (453)
67,985 users

YouTube No Buffer (Stop Autoplaying) Featured

A bulletproof approach to prevent YouTube from buffering videos

Rated 4 out of 5 stars (32)
10,721 users

QR Code Image Generator Compatible with Firefox 57+ Featured

Create a QR code of the selected text, current url or hyperlink. Also possible to create a QR Code from free text within Firefox. Now with UTF8 support.

Rated 4 out of 5 stars (37)
14,210 users

DuckDuckGo Plus Featured

DuckDuckGo is the search engine that doesn't track you. This add-on makes DuckDuckGo your default search engine and includes some other useful features.

Rated 4 out of 5 stars (189)
337,824 users