* New mail notification was not hidden after reading the new message
* New mail notification could show for the wrong folder, causing
repeated alerts
* macOS shortcut CMD+1 did not restore the main window when it was
minimized
* Clicking the context menu "Reply" button resulted in "Reply-All"
* Switching from "All", "Unread", and "Threads with unread" did not work
* Downloading message headers from a newsgroup could cause a hang
* Message list performance slow when many updates happened at once
* "mailto:" links did not apply the compose format of the current identity
* Authentication failure of AUTH PLAIN or AUTH LOGIN did not fall
back to USERPASS
MFSA 2025-05 (bsc#1234991)
* CVE-2025-0237 (bmo#1915257)
WebChannel APIs susceptible to confused deputy attack
* CVE-2025-0238 (bmo#1915535)
Use-after-free when breaking lines in text
* CVE-2025-0239 (bmo#1929156)
Alt-Svc ALPN validation failure when redirected
* CVE-2025-0240 (bmo#1929623)
Compartment mismatch when parsing JavaScript JSON module
* CVE-2025-0241 (bmo#1933023)
Memory corruption when using JavaScript Text Segmentation
* CVE-2025-0242 (bmo#1874523, bmo#1926454, bmo#1931873, bmo#1932169)
Memory safety bugs fixed in Firefox 134, Thunderbird 134,
Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19,
and Thunderbird 128.6
* CVE-2025-0243 (bmo#1827142, bmo#1932783)
Memory safety bugs fixed in Firefox 134, Thunderbird 134,
OBS-URL: https://build.opensuse.org/package/show/mozilla:Factory/MozillaThunderbird?expand=0&rev=794
* Large virtual folders could be very slow
* Message could disappear after moving from IMAP folder followed
by Undo and Redo
* XMPP chat did not display messages sent inside a CDATA element
* Selected calendar day did not move forward at midnight
* Today pane agenda sometimes scrolled for no apparent reason
* CalDAV calendars without offline support could degrade start-up
performance
* Visual and UX improvements
MFSA 2024-69
* CVE-2024-50336 (bmo#1929264)
matrix-js-sdk has insufficient MXC URI validation which could
allow client-side path traversal
OBS-URL: https://build.opensuse.org/package/show/mozilla:Factory/MozillaThunderbird?expand=0&rev=792
