Setting for opening new convos in new windows doesn't always work. If there's already ongoing conversations, then new convos started via incoming messsges are started in a new tab, instead of a new window. Reproducible: Always Steps to Reproduce: 1. Verify that it is set to open new convos in a new window. 2. Start a two way conversation. 3. Have someone else message you. Actual Results: New message opens up in a new tab in the existing window. Expected Results: New message opens up in a new window.
*** This bug has been marked as a duplicate of bug 316004 ***