Message and News Reading
Adds a Preview Button, toggles the message preview
FlashGot Mass Downloader Requires Restart
Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.
Shortcuts to move/copy/archive messages, with folder name completion.
Set rules for moving messages to associated folders.
Automatic rules by statistical observation.
View images inside TB without external viewer.
For v2.3/TB 78.11 see below
Menu On Top (SuperMenu Avatar) Requires Restart
Move the Thunderbird menu bar to the top. Choose from a selection of visual styles + colors. Add frequently used bookmarks and an avatar icon without wasting precious screen space. Bookmark your favorite sites, emails, folders or configuration pages.
BrowseInTab lets you open and browse any link in a Thunderbird content tab. Links are followed within the tab and back/forward navigation is supported. Also with enhanced Zoom customization and a url bar.
Persistent sticky notes for Thunderbird associated to mails.
In TB 78, you can define the note position in the settings. If you have a large screen, you can even display the notes outside of TB's main window, so it won't hide anything.
Slideshow Requires Restart
Displays a slideshow of picture attachments. When email has attached pictures, it displays "View as Slideshow" button next to the attachment. Button click pops a slideshow window with all the images, allowing you to zoom in/out, save...
Quick Web Search Requires Restart
Quick search for selection text in Web. Customized for Google, Yandex, Bing, Yahoo, AOL and Baidu.
Open In Conversation Requires Restart
Make the default message list action be "Open Message in Conversation" when double-clicking or using the "Enter" key to open an email from the message list.
Raise X11 urgent flag if new mail is received.
This addon listens for incoming mails and causes the Thunderbird window to draw attention.
Displays the "Received" header parsed with a regular expression.
Get Partial Messages Requires Restart
Get the rest of all partially downloaded messages from server.
Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird
CompactHeader Requires Restart
Add symbol in header plane to switch between compact and expanded view. Work only for Thunderbird 68.0 and older. Currently, there are no plans to update this for newer versions.
Add notes to your e-mails. Drop-in replacement for XNote++ with more features.
Custom Thunderbird keybindings
Mail Summaries Requires Restart
Adds a summary of mail accounts and folders to replace the account central pane and the empty folder preview
Gather the senders ! Requires Restart
Select all the mails in a directory sent by the selected authors.
Quote Colors Requires Restart
Quote Colors allows you to select text and background colors of different quote levels which are applied when reading or printing mail/news messages. Additionally, you can choose between graphical and traditional plain text quoting display mode.
Limits displayed headers to 1 or 2 lines.