When I log into my Yahoo Mail account at http://mail.yahoo.com in a browser tab, the Mozilla title bar is updated to "Yahoo Mail", but the tab has a title "(untitled)". For most pages, the tab title is changed to the page title (as it appears in the Mozilla title bar), and I would expect this to happen here as well. I think there's a Yahoo Mail test account "moztest" or something like that if you want to try it.
BTW: I'm running Mozilla 0.9.8 release build (2002020406) on Windows 2000.
Yahoo Mail uses frames, so this is probably a duplicate of bug 101827.
*** This bug has been marked as a duplicate of 101827 ***
Status: NEW → RESOLVED
Last Resolved: 17 years ago
Resolution: --- → DUPLICATE
Status: RESOLVED → VERIFIED
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