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YouTube Video Player Preview

YouTube Video Player Preview lets you preview YouTube videos when you hover over thumbnails.

Rated 5 out of 5 stars (2)
11,640 users
Added July 24, 2016

Google Hangouts Web Messenger

Google Hangouts Web Messenger brings Google Hangouts right into your browser to chat with your friends.

Rated 5 out of 5 stars (4)
4,114 users
Added July 19, 2016

Stop Watch timer (Sea Monkey)

Stop Watch timer for Sea Monkey

Not yet rated
1 user
Added June 24, 2016

Tasks Scheduler (Sea Monkey)

Keep a list of your important todo list in one place.

Not yet rated
4 users
Added June 24, 2016

LookOut (fix version) Requires Restart

LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
Support: Thunderbird and SeaMonkey

Rated 4 out of 5 stars (11)
21,552 users
Added June 24, 2016

Force Safe Search

Forces safe search on the major search engines.

Not yet rated
302 users
Added June 20, 2016

YouTube Video Player Pop Out

YouTube Video Player Pop Out lets you pop out YouTube videos so that you can watch YouTube videos while you surf.

Rated 4 out of 5 stars (9)
9,653 users
Added June 19, 2016

AdSidebar

Live in harmony with ads.

AdSidebar is an alternative to traditional ad blocker extensions that benefits both the user and content creators. Ads are displayed in a sidebar on the right side of the screen.

Not yet rated
22 users
Added June 16, 2016

XingClean

Der Spam-Filter für Xing! Entfernt störenden Spam aus der Xing-Timeline und den Gruppen.

Not yet rated
10 users
Added June 8, 2016

XDM Hook Requires Restart

XDM integration module for Firefox

Not yet rated
4,801 users
Added June 4, 2016

No Resource URI Leak

Deny resource:// access to Web content: We fill the hole to defend against fingerprinting. Very important to Firefox privacy. A direct workaround for bugzil.la/863246

Rated 4 out of 5 stars (19)
6,285 users
Added May 30, 2016

jsbtn Requires Restart

JS on/off status bar button

Not yet rated
10 users
Added May 28, 2016

PlayFlash 64bit Requires Restart

Flash player plugin - unofficial xpi repack for 64bit browsers. Use when official plugin installer is not suitable. All binary files are copyrighted by their authors and distributed for free.

Rated 5 out of 5 stars (12)
7,008 users
Added May 21, 2016

Simple YouTube MP3 Button

Adds a small and simple button to YouTube videos that allows you to quickly download the audio of the video as an MP3 file (quality of the MP3 is as high as the video offers) without having to leave the page.

Rated 5 out of 5 stars (52)
41,184 users
Added May 18, 2016

StopAll Ads

GO ADS FREE NOW!
Browse Safely. Optimize Surfing

Rated 5 out of 5 stars (7)
681 users
Added May 17, 2016

Tategaki Requires Restart

Tategaki allows vertical writing-mode on mail compose window.

Not yet rated
27 users
Added May 16, 2016

adaware ad block

By blocking annoying ads and nosy trackers, adaware ad block nearly doubles your browsing speed! And with the most robust antivirus-level cloud-scanning technology of any ad blocker on the market, you’ll be safe from the latest cyber-threats.

Rated 4 out of 5 stars (33)
88,384 users
Added May 13, 2016

RemindMeBot-Reddit

All the great features of /u/RemindMeBot in a quick and easy to use extension!

Rated 4 out of 5 stars (3)
116 users
Added May 11, 2016

YouTube Video Download & Convert

YouTube Video Download and Convert is the powerful add-on that lets you collect all media information available on YouTube. Advanced power panel lets you download, preview, play with and convert all media right inside Firefox.

Rated 5 out of 5 stars (4)
49,989 users
Added May 2, 2016

Send Later Button Requires Restart

A simple button to invoke the (already existing) send later functions.

Not yet rated
3,722 users
Added April 28, 2016