Open With Internet Explorer No Restart
Open With Internet Explorer sends pages from Mozilla Firefox to Internet Explorer.
An easier management of the user interface language
Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey
Enhanced thread pane display of message priorities.
A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...
jQuery and jQuery UI embedded in browser
Adds a "Print" option to the Right-Click context menu.
Speed Start No Restart
Speed Dial & Start Page with flexible layout for fast access to sites via visual bookmarks
JSONovich No Restart
Pretty-prints JSON content in the browser for easy, unobtrusive viewing.
Add-ons Manager - Version Number No Restart
Restores version numbers for all installed add-ons inside Add-on Manager on Firefox, Thunderbird and Seamonkey.
Lightweight Themes Manager No Restart
Manage your installed personas (lightweight themes).
Drag-Select Link Text No Restart
Select link text with easy drag gestures.
The Remember Mismatched Domains extension for Firefox and Thunderbird adds a "Don't warn me again about this certificate for this domain" checkbox to the Domain Mismatch and Expired Certificate warning windows. When selected the domain...
Open With Opera No Restart
Open With Opera sends pages, links, tabs and images from Mozilla Firefox to Opera.
Allows users to edit the flags Thunderbird sets on folders.
Adds a hostname, URL, or email account ID to the application's window name (e.g., that of Firefox or Thunderbird) to make it recognizable to password manager utilities like KeePass.
Allows you to resize the window to specific dimensions.
NOTE: Users of Firefox 29 and above must install "The Addon Bar" extension to use this, as Firesizer uses the add-on bar that has been removed in Firefox 29.
Make the “Received” column in IMAP folders show when messages were actually received.
GNotifier No Restart
Add-on for Firefox and Thunderbird. Replaces built-in notifications with the OS native notifications. It supports most Linux Desktop Environments, Windows 8.1 & 10.