Email client Thunderbird 68.3.0 is out

[harlan4096]

The Thunderbird team has released Thunderbird 68.3.0 recently. The new version of the new major branch of the email client is a security and maintenance release for the most part that fixes several issues discovered in previous versions of the email client.

Thunderbird is offered in two branches currently: the 60.* branch with legacy support for extensions, and the new 68.* branch that focuses on WebExtensions for the most part. Currently, Thunderbird 68.* is only offered as an update on Thunderbird 60.* devices if the calendar add-on Lightning is installed.

Thunderbird 68.3.0

Thunderbird 68.3 fixes several security vulnerabilities. You find detailed information about each on the official security advisories page. The email client is not affected by critical issues; the highest severity rating is high.

Here is a short list of fixed issues:

* CVE-2019-17008: Use-after-free in worker destruction
* CVE-2019-13722: Stack corruption due to incorrect number of arguments in WebRTC code
* CVE-2019-11745: Out of bounds write in NSS when encrypting with a block cipher
* CVE-2019-17009: Updater temporary files accessible to unprivileged processes
* CVE-2019-17010: Use-after-free when performing device or
* CVE-2019-17005: Buffer overflow in plain text serializerientation checks
* CVE-2019-17011: Use-after-free when retrieving a document in antitracking
* CVE-2019-17012: Memory safety bugs fixed in Firefox 71, Firefox ESR 68.3, and Thunderbird 68.3

The official release notes list two additions to Thunderbird 68.3.0. Extension developers may use the newly implemented Message Display Toolbar Action WebExtension API, and navigation buttons are now available in content tabs in the application.

Windows users who use Thunderbird may notice that the new email icon has changed on the system.

The remaining changes address issues in previous versions of the email client. None of the issues appear to be major, e.g. that attachment icons were not always correct in the write pane or that the drag & drop reordering of accounts was not working on the Instant messaging status dialog.

Users who noticed that toolbar buttons of add-ons would not show up in the menubar after start won't experience that issue anymore in the new Thunderbird version.

Now You: which email client do you use?
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