release of the Thunderbird 78.2.0 mail client, in which the following changes can be noted:
- OpenPGP key generation is disabled if there is no default mail account configured.
- Encryption of saved drafts is provided if OpenPGP is enabled.
- Twitter search code has been removed.
- Added support for using themes for the dialog with summary data about an event in the scheduler calendar.
- Some add-on APIs have been moved to use defineLazyPreferenceGetter with caching support.
- Address book performance has been optimized.
- Various minor improvements have been made to the interface and themes.
Source: opennet.ru