Get Involved
Thunderbird is an open source project, which means anyone can contribute ideas, designs, code, and time helping fellow users.
Join UsVersion 124.0beta, first offered to channel users on February 21, 2024
Cards UI styling of expand and collapse for threads
Spam and Junk message styling in Card UI adjusted to be less distracting
Using middle-mouse click on a message (open in background tab) did not work
Group-by-sort Unified folders were slow to open when expanded-all
References and Reply-To headers were not set if they were included in mail.compose.other.header
Header pane was not shown when pref mailnews.headers.showUserAgent
was set
"Open message in conversation" and "Open message in containing folder" from a standalone window failed
"Get Messages" toolbar button was initially disabled after opening a message from a file in a new window
"Get selected messages" menu items did not work
Sender in multimesage view was right aligned when the text wrapped to multiple lines
"Quote message" menu item in compose window did not work when replying to message opened in separate tab
POP error messages from server were not displayed
After changing password on an IMAP account, the account could become locked due to too many failed login attempts
Settings: Checkbox to enable underlined links was missing
Settings: Updating tags failed if Automatic Updates were disabled
Selecting "Match all messages" in Filter Rules dialog did not disable all search criteria
Toolbar customization window contents overflowed the window width
New mail notifications in Windows 11 stole focus from current window
"Copy/Cut" context menus did not work in extension options pages
Performance improvements and code cleanup
Keyboard navigation within search toolbar did not work
Cards UI style fixes
Threaded view was slow to load
Multi-language spellcheck sometimes skipped languages
Visual improvements to "Reorder Attachments" popup
S/MIME-only signed messages sometimes incorrectly displayed signature as invalid
IMAP folders containing other folders could not be deleted due to Thunderbird using "unsubscribe" IMAP command
Draft messages were not replaced when saved to an IMAP server without UIDPLUS support
Flatpak builds only had the en-US spell check dictionary available