Interface Customizations

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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 (28)
1,328 users

Open With Opera No Restart

Open With Opera sends pages, links, tabs and images from Mozilla Firefox to Opera.

Rated 5 out of 5 stars (4)
1,289 users

RC Print

Adds a "Print" option to the Right-Click context menu.

Rated 5 out of 5 stars (2)
1,265 users

Drag-Select Link Text No Restart

Select link text with easy drag gestures.

Rated 5 out of 5 stars (28)
1,198 users

CheckBoxMate Lefedor Edition

Check multiple checkboxes by drawing a rectangle around them. FF6 version.
I've made this version since i did need it for use with RTM,

Rated 4 out of 5 stars (13)
1,112 users

Enhanced Priority Display

Enhanced thread pane display of message priorities.

Rated 5 out of 5 stars (5)
1,102 users

Link Status Redux

Shows an indicator on the status bar in front of the link address when the mouse cursor is over a link to a page you have bookmarked or visited before.

Rated 4 out of 5 stars (33)
1,081 users

Add-ons Manager - Version Number No Restart

Restores add-on version number inside Add-on Manager for latest builds of Firefox, Thunderbird and Seamonkey.

Rated 5 out of 5 stars (15)
1,079 users

Duplicate Tab Blocker No Restart

Prevent duplicate tabs. Allow only one tab for a url. If you click a link that is already opened in a tab, then existing tab would be focused instead of opening a new tab. This works even across firefox windows.

Rated 3 out of 5 stars (10)
976 users

Big Navigation No Restart

enlarging the navigation links on the pages

Rated 5 out of 5 stars (6)
849 users

Duplicate Tab

Duplicate Tab allows you to clone a tab along with its...

Rated 5 out of 5 stars (182)
836 users

Page Colors & Fonts Buttons No Restart

Adds buttons to toggle the using the default page colors and fonts, and the page defined colors and fonts.

Rated 4 out of 5 stars (4)
764 users

Profile Buttons No Restart

A button to be able to open the profile folder, along with two buttons to create profiles, and also switch the current profile.

Rated 3 out of 5 stars (2)
745 users

Joomla! Admin

Joomla! Admin brings ease & convenience to your computer/workstation, by providing you with a ready-to-use menu options that balms your repetitive work :) Now, Go to the Administrator page or Duplicate the current tab to a new tab/window in a jiffy!!

Rated 5 out of 5 stars (5)
702 users

printplus

PDF export support by Gecko.
https://github.com/hATrayflood/printplus

Rated 4 out of 5 stars (5)
694 users

Export All Certificates

Adds an option to export all root certificates.

Rated 5 out of 5 stars (1)
690 users

Undo Close Tab Button No Restart

Reopens the last closed tab.

Rated 5 out of 5 stars (3)
659 users

tab-counter

shows the number of tabs in the status-bar

Rated 4 out of 5 stars (6)
640 users

Sea Fox

Transform SeaMonkey into Firefox 3.x

Rated 5 out of 5 stars (6)
591 users

Sort and Search Customization Dialogs

Sort and search for buttons in (any) toolbar customization dialog

Rated 4 out of 5 stars (14)
565 users