
Preference mailnews.p7m_subparts_external needs to be set to true for added security. 2) Optionally: Not decrypting subordinate message parts that otherwise might reveal decrypted content to the attacker. FixesĬomplete fix of the EFAIL vulnerability: 1) Removing some HTML crafted to carry out an attack. Note: Under certain circumstances an incorrect estimate of the expected gain is shown. Thunderbird will now prompt to compact IMAP folders even if the account is online.

Please refer to Release Notes for version 52.0 to see the list of improvements and fixed issues. Window: Windows XP, Windows Server 2003 or later.

As always, you’re encouraged to tell us what you think, or file a bug in Bugzilla Check out the notes below for this version of Thunderbird.
