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Tab Grenade No Restart

Puts all your tabs into a list, freeing memory without losing any information. Open-Source and very lightweight.

Click the icon or press Ctrl-Alt-T/Cmd-Option-T to "grenade" the tabs.

Rated 4 out of 5 stars (23)
7,351 users

Tile View

Split the Firefox window into multiple browsers by applying a tiled layout so that multiple websites can be viewed side by side. Resize tiles by dragging splitter bars. Open tabs and links by dragging into tiles. Synchronize scrolling of tiles.

Rated 4 out of 5 stars (20)
3,356 users

Max Tabs No Restart

Set maximum number of opened tabs in a window.

Rated 5 out of 5 stars (5)
3,736 users

Mercury Connect No Restart

With Mercury Connect, you can sync bookmarks and tabs, send webpages and more directly to your mobile devices.

Rated 4 out of 5 stars (10)
3,509 users

Suspend Tab No Restart

Suspends background old tabs automatically to save memory usage.

Rated 4 out of 5 stars (26)
4,058 users

Session box - Tabs manager No Restart

Manage browser sessions, tabs, and opened windows. Synchronize between computers. Recently closed and last accessed tabs. Save, organize, and synchronize your browser Tabs and Opened Windows.

Rated 4 out of 5 stars (5)
1,644 users

Moment

Keep up with time.

A minimalist clock on the new tab page showing the current time, date, and weather. Both the background colour and the text colour are fully customizable.

Rated 5 out of 5 stars (8)
1,252 users

World Weather

Get current weather and 3 day forecast for thousands of cities around the world.
A simple and fun way to get current weather all around the world.

Get current weather and 3 day forecast for thousands of cities around the world.

Rated 4 out of 5 stars (3)
3,864 users

Window and Tab Limiter

This extension will automatically close old windows and tabs so you don't wind up with zillions of old windows open at the same time. NEW FEATURES IN 3.0. Password protection....and 3 modes of operation.

Rated 4 out of 5 stars (44)
25,739 users

Duplicate Tabs Closer No Restart

Detects and automatically closes duplicated tabs.

Rated 4 out of 5 stars (11)
1,908 users

All Tabs Helper

Transforms "List All Tabs" menu to do closing, loading, unloading, moving of single/multiple tabs. Search tab titles or *content* (remember "Find In Tabs"?), visited tabs history, find duplicate tabs - very helpful for mega-tab users. And more...

Rated 5 out of 5 stars (19)
2,105 users

Tab Utilities Lite CE

Open Bookmarks/History/Homepage/URL/Search in new tabs, and more utilities for tabbed browsing. This is a custom version of Tab Utilities Lite (https://addons.mozilla.org/firefox/addon/tab-utilities-lite/).

Rated 5 out of 5 stars (22)
1,720 users

Tabs On Bottom No Restart

Applies "Tabs on Bottom" appearance.

Rated 4 out of 5 stars (43)
17,701 users

Tab Killer

Disables tabbed browsing features of Firefox completely.

Rated 4 out of 5 stars (39)
1,945 users

customize_titlebar_v2

Customize FireFox title bar (window title) that is useful for software such as KeyPass for automating log on to various websites based on specific domain, URL, etc.

Rated 5 out of 5 stars (5)
1,988 users

Showcase

Easily find and manage your browser tabs.

Rated 4 out of 5 stars (139)
53,790 users

Fire IE (FireIE, Enhanced IE)

Embeds Internet Explorer(IE) to use the powerful Firefox add-ons.
Not only an enhanced IE Tab, but also an enhanced Internet Explorer with Adblock Plus and FireGestures support.
Switch to the IE engine in one click and dismiss your IE.

Rated 4 out of 5 stars (98)
47,688 users

Duplicate in Tab Context Menu

Simply adds "Duplicate Tab" to tab context menu.

Rated 5 out of 5 stars (22)
6,393 users

Tab Kit - Mouse Gestures No Restart

Provide some mouse gestures like switching tabs

Rated 5 out of 5 stars (4)
1,354 users

Single Key Tab Switch

Single Key Tab Switch provides configurable single hotkeys for switching tabs, like the 'Single-key shortcuts' feature of the Opera browser.

Rated 4 out of 5 stars (24)
1,248 users