interesting

by LandisTwo

94 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,766 reviews

2,372,424 users

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...

Stylish by Jason Barnabe

Rated 4 out of 5 stars 734 reviews

731,800 users

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.

VKontakte.ru Downloader (music/videos/photos @ VK) by Sergey Kolosov

Rated 5 out of 5 stars 410 reviews

272,365 users

Download music, videos and photos from VK.com / vkontakte.ru. One-click download, natural filenames, displaying file size and bitrate for music, downloading HD video, downloading HQ photos. No spam, no usage of your account, no spyware.

Classic Theme Restorer (Customize UI) by Aris

Rated 5 out of 5 stars 904 reviews

435,757 users

Squared tabs, appmenu, add-on bar, small button view and many more 'old' features for Firefox 29+ (Windows / MacOSX / Linux).

All builds & changelogs on versions page!

Lightbeam for Firefox by Mozilla

Rated 4 out of 5 stars 386 reviews

416,536 users

Lightbeam is a Firefox add-on that enables you to see the first and third party sites you interact with on the Web. Using interactive visualizations, Lightbeam shows you the relationships between these third parties and the sites you visit.

All-in-One Sidebar by Ingo Wennemaring

Rated 5 out of 5 stars 1,381 reviews

226,675 users

AiOS lets you open various windows as sidebar panels, and quickly switch between them. So it put an end to the window chaos! In addition to bookmarks and history it opens dialogues such as downloads, add-ons and more in the sidebar.

JSONView by Ben Hollis

Rated 5 out of 5 stars 126 reviews

95,214 users

View JSON documents in the browser.

FlashFirebug by O-Minds

Rated 4 out of 5 stars 5 reviews

33,759 users

Debug Flash/SWF files on the web. Edit properties and inspect elements on the fly. View log output inside the extension. Run AS3 code against the active SWF. Access assets with the Explorer. View AMF calls and Shared Objects and much much more...

Tile Tabs by DW-dev

Rated 5 out of 5 stars 218 reviews

72,752 users

Displays tabs in tiled layouts in Firefox. Arrange tiles horizontally, vertically or in a grid. Resize tiles by dragging splitter bars. Tabs and links can be dragged to open in other tiles. Supports multiple tiled layouts. Works with tab groups.

Omnibar by Ajit K

Rated 4 out of 5 stars 458 reviews

47,635 users

Integrates location bar and search bar into one. Shows search and url suggestions. Quickly switch search engine using search keywords. Provides different auto-complete popup styles for compact displays.

Toolbar Buttons by Michael B.

Rated 4 out of 5 stars 315 reviews

141,999 users

Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.

Classic Toolbar Buttons by Aris

Rated 5 out of 5 stars 140 reviews

40,275 users

'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions on Windows.

Beta builds on versions page!

Vimperator by maxauthority, gkatsev

Make Firefox look and behave like Vim

VKontakte.ru / vk.com Video Downloader by Jack

Rated 3 out of 5 stars 8 reviews

16,087 users

Plugin for downloading video from VKontakte.ru / vk.com social network.

Restartless Restart by Erik Vold

Rated 5 out of 5 stars 179 reviews

43,701 users

This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart Firefox or Seamonkey.
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