Thunderbird users who use a Master Password in the application to protect passwords may have been exposed to a password deletion issue in recent versions of the email client.
The major release introduced new functionality and made some changes to Thunderbird; one of those changes migrated the security databases key3.db and cert8.db used to store passwords and certificates to key4.db and cert9.db.
Thunderbird installations affected by the issue had saved passwords and private certificate keys deleted. The issue affected installations with master passwords. Master Passwords are not used by default but may be enabled in the Thunderbird email client to improve security.
Thunderbird users need to open Tools > Options > Security > Passwords to protect passwords with a Master Password. Just check the "use a master password" box on the page and follow the instructions to add it to the program.
The development team notes that affected users may restore a backed up version of the databases to regain access to passwords and private certificates. How that is done is not mentioned, however. The backups, with the .bak extension, are listed in the Thunderbird profile folder.
Affected users could rename the current file, e.g. key3.db, and rename the backup file key3.bak afterward. It is not clear if that is the method that the team suggests; make sure you back up all files before you proceed.
Thunderbird 60.3.3 fixes three additional issues:
The version of the email client has three unresolved issues:
Users who run Thunderbird may notice that it is not offered currently when they run a manual check for updates under Help > About Mozilla Thunderbird. The official download page on the project website lists 60.3.2 as the latest version as well.
The new release is available on Mozilla's FTP though.
Tip: Find out how to migrate from Thunderbird 32-bit to 64-bit. Note that Thunderbird is offered as a 32-bit version officially only currently on Windows.Advertisement
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