User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9) Gecko/2008052906 Firefox/3.0 Build Identifier: version 126.96.36.199 (20080421) When saving an email with save as, it is possible to open multiple 'dead' copies of Thunderbird which have no functionality. Reproducible: Always Steps to Reproduce: 1.Open Thunderbird 2.Click on a message in the in box 3.File -> Save as -> File Ctrl+s 4.While the save as window is open, run Thunderbird from a desktop or quicklaunch icon. Actual Results: A new instance of Thunderbird will open up, with blank email/contact fields and no button functionality Expected Results: Thunderbird should have ignored the command to open itself, as it was already running.
This shouldn't be an issue for thunderbird3. See bug 257121 (fixed by bug 389931).