Recently Updated Extensions

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YouTube High Definition No Restart

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 (191)
293.720 users
Updated February 26, 2015

Twitter App

Twitter App brings Twitter right into your Firefox Sidebar.

Rated 5 out of 5 stars (10)
15.059 users
Updated February 26, 2015

Thumbnail Zoom Plus

Shows full image when you hover over a thumbnail. Works with Amazon, Baidu Images, Bing Images, Facebook, Flickr, Google+, Google Images, IMDb, LinkedIn, Netflix, Pinterest, Reddit, Twitter, Yandex, YouTube, Wikipedia, Yahoo Images, & many more.

Rated 5 out of 5 stars (282)
141.784 users
Updated February 25, 2015

It's All Text!

Edit textareas using an external editor, because it's all text!

Right click on a textarea, select "It's All Text!" and edit the text in the editor of your choice.

Alternatively, click on the edit buttons added for your convenience. Right click on ...

Rated 4 out of 5 stars (183)
13.466 users
Updated February 25, 2015

Extension Test

A simple add-on for extension testers, especially AMO editors and developers who plan to submit their add-ons to AMO.

Rated 5 out of 5 stars (6)
185 users
Updated February 25, 2015

Facebook Toolbar Button No Restart

Facebook Toolbar Button lets you visit your Favorite Facebook quickly and easily by adding a special Facebook Button to your Toolbar.

Rated 5 out of 5 stars (16)
27.848 users
Updated February 25, 2015

Facebook Photo Zoom No Restart

Facebook Photo Zoom lets you zoom Facebook images.

Rated 5 out of 5 stars (13)
32.887 users
Updated February 25, 2015

Zombie Keys (Multilanguage Keyboard)

Enter accents, diacritics, diaeresis, umlauts, ligatures etc. with keyboards of various countries (us,uk,ie,fr,it,ru,de,sv) - via easy to remember shortcuts or menu. Also supports all textboxes of the application (such as search, filters).

Rated 5 out of 5 stars (22)
1.505 users
Updated February 25, 2015

DOM Inspector Plus! [dm]

Improved DOM Inspector! [dm version]. Box Model new layout & more data, see screenshot!. Horizontal scroll for Dom-Tree, and some more.
Inspects the structure and properties of a window and its contents.

Rated 5 out of 5 stars (3)
771 users
Updated February 25, 2015

Clean Links No Restart

Converts obfuscated or nested links to genuine clean links.

Eg: http://somesite.com/?to=www.example.comhttp://www.example.com/

Rated 4 out of 5 stars (76)
31.279 users
Updated February 24, 2015

ColorfulTabs

The most beautiful yet the simplest add-on that makes a strong colorful appeal. Colors every tab in a different color and makes them easy to distinguish while beautifying the overall appearance of the interface. For Seamonkey & Flock. An essential. F...

Rated 4 out of 5 stars (962)
260.986 users
Updated February 24, 2015

Facebook Message Seen Disable No Restart

Facebook Message Seen Disable lets you turn off Facebook's Message Seen feature automatically for your account. You can still use Seen feature for others.

Rated 4 out of 5 stars (3)
16.692 users
Updated February 24, 2015

Provider for Google Calendar

Allows bidirectional access to Google Calendar

Rated 4 out of 5 stars (963)
292.169 users
Updated February 24, 2015

Ghostery No Restart

Protect your privacy. See who's tracking your web browsing and block them with Ghostery.

Rated 5 out of 5 stars (1.075)
1.423.586 users
Updated February 23, 2015

Menu Wizard

Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey

Rated 5 out of 5 stars (73)
10.603 users
Updated February 23, 2015

Facebook Messenger

Facebook Messenger lets you bring a Facebook Messenger right into your browser to chat with your friends.

Rated 5 out of 5 stars (21)
22.230 users
Updated February 23, 2015

Theme Font & Size Changer No Restart

Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.

Rated 5 out of 5 stars (140)
92.701 users
Updated February 23, 2015

Pinterest Pin Button No Restart

Pin it and send your Pins to Pinterest quickly and easily with Pinterest Pin Button.

Rated 5 out of 5 stars (11)
75.111 users
Updated February 23, 2015

Form History Control

Manage form history entries (search, edit, cleanup, export/import) and easy text formfiller.

Auto-save text entered in any form while typing to allow fast recovery when disaster strikes.

Control for which webpage form history is saved or not.

Rated 5 out of 5 stars (70)
30.519 users
Updated February 22, 2015

Webpage Screenshot in Firefox (♥♥♥♥♥)

FireShot Webpage Screenshots captures webpage screenshot entirely (see demo: http://bit.ly/RlBQMV)

The screenshot can be quickly annotated and:

+ Uploaded
+ Saved as PDF/PNG/GIF/JPEG/BMP
+ Sent to clipboard
+ Printed
+ E-Mailed
+ Exported

Rated 5 out of 5 stars (422)
269.470 users
Updated February 22, 2015