Appearance and Customization
Open about:config to change hidden settings that cannot be edited from the Options window. All Mozilla based programs have settings that can not be changed in the options window.
Restores version numbers for all installed add-ons inside Add-on Manager on Firefox, Thunderbird and Seamonkey.
AddressBook in Tab Requires Restart
Adds a button that can be put in toolbars which opens the addressbook in a new tab like pastismans AddressBookTab
AdvancedTasks Requires Restart
Thunderbirds Lightning Extension: Allows the use of Markdown in Task descriptions and renders them as HTML in the TaskView.
Show all the menus in a single menu button that can be placed anywhere. Also contains replacement buttons for the default menus.
ansitel Click-to-Dial Thunderbird Requires Restart
Click-to-Dial Plugin für ansitel VoIP-Telefonanlagen zum Markieren und Wählen von Rufnummern in Mozilla Thunderbird.
Auto Zoomer Requires Restart
Keep a preset zoom level across thunderbird restarts.
Usefull on High DPI screens.
Before Tabs Toolbar Requires Restart
Adds a toolbar before the tabs.
enlarging the navigation links on the pages
Chat Notifier with Pop-Ups Requires Restart
Allows to be notified when you receive chat message in Thunderbird.
Checkbox Column Requires Restart
Adds a custom column to Thunderbird's messages list (thread tree), making it easier to select multiple messages on devices with a touchscreen display.
This addon returns the old view of the pop-up notifications, as in Firefox 4.0 - 43.0
THIS ADD-ON IS NOW UNNECESSARY FOR FIREFOX 31 AND UP!
Tired of middle-clicking on the last tab in Thunderbird, only to have nothing happen? This add-on embraces the industry-standard middle-click behavior of IE, Chrome, and Firefox (3.6- and 31+).
Collapsed Unread Requires Restart
Shows unread email count for collapsed folders even if the unread mails are in subfolders.
Color Folders Requires Restart
Color your Folder Treeview Icons!
Transform the colors of entire web pages or selected elements. Combine predefined themes with basic transforms. Save transforms for specific web domains.
Colorize entire web pages. Configure themes using sliders and drag-and-drop. Set domain preferences for automatic coloration.
Web reader for wide screens and long documents. Read with pleasure in attractive layouts.
ColumnsWizard Requires Restart
Adds some magic to the messages list columns!
With this addon you can:
* Add a custom column
* Set the default columns for any new folder.
* Show hidden columns in the Conversation Tab.
* Edit a mail header value for a single message.