* Thunderbird registered Accessibility Handlers using same GUIDs
as Firefox, causing performance issues for NVDA users
* Focus lost when reordering accounts by keyboard in the Account Manager
* Account setup did not use provider display name for setting up
calendars
* Various theme and UX fixes
MFSA 2021-XX (bsc#1190269)
- (re-)added mozilla-silence-no-return-type.patch
- add mozilla-bmo531915.patch to fix build for i586
OBS-URL: https://build.opensuse.org/package/show/mozilla:Factory/MozillaThunderbird?expand=0&rev=604
