Add-ons
Appearance and Customization
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Clacks Overhead
In tribute to the late Sir Terry Pratchett, many users are adding the message "GNU Terry Pratchett" into the email header "X-Clacks-Overhead". Clacks Overhead shows users when this appears in their emails and displays the message included.
More Snooze
This add allow to customize the snooze delay when snooze popup appears (lightning required).
Tag Sync for TB
Syncronise/transfer tags, to other TB installations.
POP and some IMAP servers don't store tags (keywords).
This addon helps to have the same emails tagged on all TB installations.
Uses a central database, can be installed on your PC or server.
Close on Escape Too
Requires Restart
Updated version of David Winter's Close Tab on Escape, ported to be compatible with Thunderbird 68 and later.
Priority Switcher
Change priority of the received messages from the toolbar button and the context menus...
No tabs
Hides the tab bar and automatically removes all inactive tabs everytime a tab is opened or switched to.
Flat Folder Tree Reborn
Requires Restart
Flat Folder Tree Reborn is an update of the Flat Folder Tree add-on, which allows you to selectively promote or breakout sub-folders in the folder tree. Use with IMAP servers where some folders remain collapsed under a special namespace like [Gmail].
ResizeTbWidth
Resize Thunderbird window width.
Set window with three widths (1/1 (1920px), 1/2 (960px), 1/3 (640px)).
July 3rd 2021.
I love God.
Sungho.
Switch Link External Handler
Requires Restart
Provides abilities to switch external handlers to open links.
Lowercase Email Addresses in Message Headers
Requires Restart
Shows lowercase email addresses in message headers and their tooltips.
Spam Scores
Displays spam scores according to mail headers. Supports spam/ham score headers of Rspamd, SpamAssassin and MailScanner. The add-on adds a column with the overall spam score to the mail list view and shows details of any matched spam/ham rule.
Perfect View
Image viewer with smooth dynamic zoom, pan and rotate. View slide shows of images or files and capture page elements and tab content. Apply image filters. Save images in various formats.
Profile Buttons
A button to be able to open the profile folder, along with two buttons to create profiles, and also switch the current profile.
DevTools Button
Maximize Message Pane
Maximize message pane by collapsing the thread pane. You can read a message in larger area without opening a new message window...
RainbowMemo
userChromeJS
Load the contents of chrome/userChrome.js from the user's profile directory every time a window is opened. Also add a toolbar button which reloads userChrome.js in the current window.
Toggle Address Box
Adds a Address Box button, toggles the Address Box in the Composer window
To create your own collections, you must have a Mozilla Add-ons account.
