Thunderbird 128.10.0 treatment of "Fetch Headers only" email

HDB — Wed, 07 May 2025 22:37:17 GMT

Guys,

TB 128.10.0esr (32 bit), Windows 10 (64 bit).

Back in October 2023, I posed about TB 115.3.2's not-quite-right handling of new emails in a folder with the Fetch headers only server attribute set, namely that after initiating the download, v115 moved the item focus in the message list pane down to the next message, causing that message's body to appear in the preview pane. I had to re-select the now-downloaded message to view its body in the preview pane.

(If there is no "next" message, i.e. the new email is the last one listed, then behaviour is indeed as expected, the message is unmarked as "read", is downloaded and displayed in the preview pane with focus retained).

This problem was fixed in a subsequent release but it somehow returned a few releases ago.

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Thunderbird 128.10.0 treatment of "Fetch Headers only" email