User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1 Build Identifier: version 2.0.0.14 (20080421) Threaded view is good. But gmail like conversations view will be better. Reproducible: Always Steps to Reproduce: 1. 2. 3. If you use gmail, I don't need to explain further. Current threaded view in thunderbird shows all the email for each sender. In other words, if I select a message, I can see all the trail. This is not necessary.

Similar to bug 306125, with attachment 325561 [details] for thread organization. Not exactly a duplicate though, only asking for collapsed thread tree.