Add-ons
Appearance and Customization
Sort by:
Show Calendar Week
Requires Restart
Shows the calendar week Thunderbird/Lightning calendar's moth and multi-week view.
DontRestoreTabsRevival
This is a remake of the DontRestoreTabs extension. It is compatible with Thunderbird 88+. The code is based on the tabControl extension.
Thin Tabs
Extremely thin tabs optimized for the squared variants of Classic Theme Restorer.
Please see description for updates!
HERA - Hotel Email Reservation Assistant
HERA helps hotels to semi or fully automatically respond to emails by checking rates in your PMS / CRS
Menu Filter
Requires Restart
Keep your menus in check by filtering out items you never use.
Toggle Summary
Titlebar Tabs Cleaner
Requires Restart
A toolbar button to remove the tabs from the Windows titlebar back to their original place. Provides an easy way to undo the changes introduced by Thunderbird 17 or switch between the two modes effortlessly.
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
Last selected message
The add-on remembers the last selected message in visited folders. After restarting Thunderbird, when we enter the previously visited folder, this message will be displayed, just like in Microsoft Outlook.
Old-style smilies
Requires Restart
Reverts the smilies in Thunderbird to those of version 2.
Toggle Message Pane
Email Addresses in Message Headers
Requires Restart
Shows email addresses in message headers, including those of contacts, and provides control over message header presentation.
Message List Preview
*Show a message preview in the subject field of the message list.
*Enlarge the subject column to display more text of the preview.
*Hover over subject to see even more preview in a tooltip.
*'Stripe' display of message list for clearer view.
MoreLayouts
Adds additional Wide Thread View and Stacked View to Thunderbird along with Reversed views. Plus configurable Fullscreen F11 and Message Pane F8 toggles. Also starring Vertical Tabs.
Folders for search, onDisk Status- Glodaquilla-NG:
Global Search/Indexing Enhancements/ On Disk Status for IMAP
Permits selective enabling and disabling of search indexing on folders or accounts - with inheritence. Extra columns can show whether a mail is stored on disk and its indexing status.
LeftTodaySubpaneOrLogoOrClock
Append today subpane to left top or append logo or clock to left bottm.
send a gift to a friend Eunjo.
Updated as of 2021-03-31.
Updated as of 2021-08-04 for Thunderbird version 90s.
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.
AttachmentCount
Adds a column to the Thunderbird message list to always display the true attachment count. An icon is shown for single attachments or all attachments deleted/detached. Tooltip preview of single attachment content and summary for multiple attachments.
ansitel Click-to-Dial
This plugin will call a selected number by clicking the right mouse button.
To create your own collections, you must have a Mozilla Add-ons account.
