[German]The developers of the e-mail client Thunderbird released Thunderbird 78.5.1 on December 2, November 2020. It is a maintenance update for the 78 main version of the e-mail client, which fixes bugs and closes security holes. At the same time the new version probably has a bug, as a reader told me the night.
Blog reader Gerold has pointed out this update in this comment (and other readers have pointed it out by mail, thanks for that). According to the release notes there is only one new feature:
OpenPGP: Added option to disable email subject encryption
and subsequent changes:
Install the Thunderbird Add-On CardBook through Thunderbird's add-on manager. Click on CardBook in the Thunderbird menu bar. Click the menu button on the top left, hover over Address Book and choose New Address Book. On the Add a new address book dialog box, choose Remote and click Next. Choose CardDAV and enter the following details. Persistent sticky notes for Thunderbird associated to mails. In TB 78, you can define the note position in the settings. If you have a large screen, you can even display the notes outside of TB's main window, so it won't hide anything. The official CardBook repository (add-on for Thunderbird) This is the recommended way to import contacts into CardBook. Note that if you import a 3.0 contact into a 4.0 address book, the contact will be converted to 4.0.You may only import.vcf files from the address book pane context menu.
Cardbook says the address books it creates are completely separate from those within Thunderbird. That suggests I could start with the address book by simply telling TbSync to stop syncing the address book, and then letting Cardbook create a new address book from my Google account.
What has changed: MailExtensions: browser.tabs.create is now waiting for the event “mail delayed start finished”. The update contains the following fixes:
In addition, several bugs have been fixed, which are listed below.
In addition, a vulnerability rated as high is closed, which is documented here.
CVE-2020-26970: Stack overflow due to incorrect parsing of SMTP server response codes
When reading SMTP server status codes, Thunderbird writes an integer value to a position on the stack that is intended to contain just one byte. Depending on processor architecture and stack layout, this leads to stack corruption that may be exploitable.
Blog-reader Adrian sent me this night an e-mail (thanks for that), claiming, that the update from Thunderbird to version 78.5.1 has an annoying bug in connection with the add-on Cardbook Version 54.4. The problem occurred on four different Windows machines. All of them run Windows 10 (2x with 1909 and 2x 20h2), Thunderbird each as 64-bit version. Adrian wrote in a 2nd mail, that this also occurred to some of my customers who read his warning too late.
Error: When rewriting an email, resp. entering the recipient address, no suggestions from the address books/autocomplete are loaded.
If you deactivate the Cardbook-add-on, the suggestions from the TB standard addressbook are loaded, but of course none from Cardbook.
Since the Cardbook version is dated November 27th, Adrian assumes that the problem is probably with Thunderbird version 78.5.1. It is also possible that Thunderbird has internal changes/fixes that affect the add-on and cause the problem. Adrian has come up with a simple workaround: He had Thunderbird version 78.5.0 reinstalled.
The system requirements for the different operating system versions (see also where further details can be found):
The download is available here. The Thunderbird is free of charge.