Toolbar button for quick access to, Powerful and Free Productivity web-based tool for Text Manipulation & Scraping.

Not yet rated
9 users

Mar Mod Requires Restart

Adds multiple characteristics and enhancements to Firefox for browsing, extension update, online translation, back up, and makes some visual modifications.

Rated 4 out of 5 stars (25)
563 users

Mar Mod Updated Requires Restart

Firefox modifications. Originally made by mitezuss, updated to add some fixes (provided by mitezuss), and added new extra tab options. Read full description for Firefox 14!

Not yet rated
57 users

Masker Eliminator Requires Restart

Remove All Mask in the

Not yet rated
147 users

MathML View Source

A 'View MathML Source' context menu item

Not yet rated
21 users


Put URLs from all open TABs into clipboard seperated by enters

Not yet rated
15 users

Max Loaded Tabs

Set maximum number of loaded tabs in a window.

Rated 5 out of 5 stars (2)
132 users

Max Tab Toggle Requires Restart

Toggles Tabs On Top when maximizing and restoring.

Not yet rated
17 users

Max Tabs

Set maximum number of opened tabs in a window.

Rated 4 out of 5 stars (19)
14,816 users

MClickFocusTab Requires Restart

While using mouse middle-click to open new tabs, with a short-time clicking to open new tabs in background, with a long-time clicking to open new tabs in foreground.

Rated 5 out of 5 stars (13)
246 users

Mercury Connect

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

Rated 3 out of 5 stars (17)
3,131 users

MereCat Chat

Enjoy persistent private and public chats crosstab after registering an account.
Merecat Chat Registration
Alpha Version

Not yet rated
7 users

Messageries Multiples

Cette extension vous permet de changer rapidement de messageries via une icône.
Compatible avec les principales messageries en France.
Une extension pour Mozilla Firefox très simple et très rapide à installer pour tous.

Not yet rated
49 users

mFull: Full Screen Mode for Firefox Requires Restart

Firefox in Full Screen mode with many extra options, such as optionally display the guides or for example the address bar. Saves the last state or force start in full screen forever! Simple and complete for this purpose.

Rated 5 out of 5 stars (5)
5,482 users

Michigan State U New Tab

For Sparty fans! The official new tab of the Michigan State Spartans.

Not yet rated
1 user

Mickey Mouse Tribute New Tab

If you love Disney and Mickey Mouse, this New Tab is for you. Enjoy Mickey Mouse wallpapers on every new tab. Includes a convenient search box and other new tab features.

Not yet rated
1 user

Mid-Click Restart

Middle-click the quit button to restart. The simplest, tiniest, and 5.3 KiB only extension for restarting.

Rated 5 out of 5 stars (2)
60 users

Middle Click on Tabbar to Undo Close Tab Requires Restart

Middle Click on Tabbar to Undo Close Tab instead Open a new tab.

Rated 5 out of 5 stars (1)
11 users

Middle Click Tabbar

Disable/Enable middle click behaviour on tabbar and tabs

Rated 5 out of 5 stars (3)
50 users

Middle Click To Go Back Requires Restart

Default actions stay as usual.
You can still "open the link in new tab" or "close tab" with middle-click.

But now middle-click on an empty space:
- on page to go back.
- on tab bar to undo close tab.

** Options dialog is available to customize. **

Rated 4 out of 5 stars (19)
664 users