In previous versions of Mozilla Thunderbird, selecting a message in the message pane and previewing it for a configurable time (default 3 seconds) would cause the message to be automatically marked as read. This option is configurable under the following menu path: Tools->Options->Advanced->Mark message read after displaying for  second(s) Recently, this feature stopped working. I am currently running 1.0, suspect it must have happened some time around 1.0RC, but can't be sure. I've tried many values including 3, 1, and 0, but none seem to make a message be automatically marked read. My mail protocol is IMAP4, which apparently must be handled differently from POP3. I have also recently switched to using the three vertical pane layout with only the "Subject" and "Sender" columns visible. I can't think of any other changes I've made. I believe this bug was once fixed, but now it's there again.
On a clean profile with this option disabled, messages are marked read immediately I preview them (supposedly due to my mail residing on an IMAP mail server), but I thought this problem had already been resolved.
Status: NEW → RESOLVED
Last Resolved: 11 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 233027
You need to log in before you can comment on or make changes to this bug.