Thunderbird is forgetting send password between messages. | Thunderbird Support Forum | Mozilla Support
You need to use a Master Password in Thunderbird if you use OpenPGP - gHacks Tech News
GitHub - vanowm/MasterPasswordPlus: Various enhancements for build-in "master password" (MP) -Locks master security device on demand or after specified time -Prompts for MP on browser startup -Suppresses all or duplicate MP prompts -
Master Password+ :: Add-ons for Thunderbird
How To Make Thunderbird More Secure - gHacks Tech News
Password Manager - Remember, delete and change passwords in Thunderbird | Thunderbird Help
Thunderbird Now Requires Password Every Time | +1-856-514-8666
A Consuming Experience: October 2010
Secure Mozilla Thunderbird With Master Password
20.04 - Ubuntu crashed and Thunderbird lost all accounts (second time) - Ask Ubuntu
Protect your Thunderbird passwords with a Primary Password | Thunderbird Help