Later it became clear, it is the antivirus component from Kaspersky that probably interferes with the Thunderbird update process. However, another user writes that it did not help him. In n this Mozilla forum post, an affected user writes that he has deactivated his antivirus software and then carried out the update. Soon users in the Mozilla forums expressed suspicion that an installed Kaspersky product was involved in this update loop. There is version 68.2.1, but it doesn't solve the problem – because the root cause for this issues lies somewhere else. Nevertheless, the update notification appears in the background with a request to download the 'latest Thunderbird' – which makes no sense. The user posted at the end of October 2019 the Thunderbird version display dialog shown above, which reports version 68.2.0. (Source:Mozilla-Forum, Thunderbird Update Loop) Here is a picture posted by one of the affected users.

Also in this forum post this problem is described.

I still get an alert stating that Thunderbird can't update to the latest version.Ī second user confirms this. I've downloaded and installed this new version of Thunderbird at least once, twice if I did it correctly the first time. How many times do I have to download and install Thunderbird? I still get an alert to update Ralf then referred in a mail to this forum post.

Users have raised the issue in various forum posts. Although the user let Thunderbird install the reported, update, a new message about a pending update occurs. If the user then tries to install this update, but there is no newer update. The problem is that the Thunderbird version 68.x reports that an update is pending. Since TB 68.x there have been repeated problems with some users that a 'non-existent' update is displayed. German blog reader Ralf drew my attention to this behavior (thanks for that).

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