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1-click Online Document View

Open DOC, DOCX, PDF, PPT, PPTX and TIFF files linked in any webpage directly with Google Docs viewer using "1-click Online Document View", with a single left-click of your mouse / trackpad!!

Rated 4 out of 5 stars (5)
2,720 users

1-Click YouTube Video Download

The simplest YouTube Video Downloader for all YouTube Flash sites, period.

Rated 5 out of 5 stars (334)
797,982 users

3e Calendar

Adds support for 3e calendars

Rated 1 out of 5 stars (1)
559 users

4or6 No Restart

IPv4/IPv6 Protocol Indicator and Configuration Manager

Rated 5 out of 5 stars (7)
2,859 users

abcTajpu

Type in accented letters, international characters or symbols into Firefox or Thunderbird, either simply by using a context menu (there being support for many languages), or quickly by keyboard macro (you can even define your own).

Rated 4 out of 5 stars (67)
4,698 users

About Add-ons

Adds an About button to extensions, themes, and languages in the Add-ons list.

Rated 5 out of 5 stars (7)
1,068 users

About Startup No Restart

Displays startup timings

Rated 4 out of 5 stars (14)
1,592 users

about:addons-memory No Restart

Adds an about:addons-memory page that details add-on memory usage

Rated 5 out of 5 stars (54)
28,364 users

about:telemetry No Restart

Display telemetry data in about:telemetry. See http://mzl.la/WI0hZz for descriptions. See http://arewesnappyyet.com for aggregated data.

*** NOTE ***: Firefox 19+ has a built-in about:telemetry page

Rated 4 out of 5 stars (8)
465 users

ActiveInbox for Gmail

Effortless Email Management: prioritize and track important emails, move projects forward and do emails faster.

(Gmail plugin for tasks, projects, inbox zero, gmail folders, GTD and more)

Rated 4 out of 5 stars (136)
484 users

Adblock Edge No Restart

Adblock Edge is a fork of the Adblock Plus version 2.1.2 extension for blocking advertisements on the web, without sponsored ads whitelist or bribes...

Rated 5 out of 5 stars (161)
604,916 users

Adblock Plus No Restart Featured

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Rated 5 out of 5 stars (4,189)
18,410,658 users

Add Search Engines for SeaMonkey

Add missing search-engine detection to SeaMonkey

Rated 4 out of 5 stars (1)
160 users

Add-on Exporter No Restart

Add-on Exporter.

Rated 4 out of 5 stars (5)
91 users

Add-on Update Checker

Adds Tools menu item to check Add-ons for updates. Includes toolbar icon.

Rated 4 out of 5 stars (33)
19,360 users

Add-ons Manager Context Menu

Add more items to Add-ons Manager context menu.

Rated 5 out of 5 stars (20)
6,751 users

Add-ons Sync Prefs No Restart

Adds Add-ons Sync Preferences to SeaMonkey 2.8

Not yet rated
62 users

Addons Manager Hilite No Restart

Remembers last selected (hilited) extension/theme/plugin/userstyle in Add-ons Manager. Turn off/on the add-on selection list box and/or fine tune behavior via its Options.

Rated 5 out of 5 stars (14)
858 users

Addons Quick Search

Type first letters of add-on name to find them in the list or press Ctrl+↑/↓ to switch between add-ons categories.
Additionally remember and restore last selected item in each list.

Rated 5 out of 5 stars (8)
466 users

Addons Recent Updates

Show more addons recent updates

Rated 5 out of 5 stars (6)
2,335 users