Via Chris Ilias’ Blog comes this gem of a tip.
If you use Mozilla Thunderbird, and love the threaded view, but hate losing the threaded view whenever you click on “Sender” or “Date” to sort the messages, then this is the tip for you. This helps you keep the threaded view regardless of how you sort the messages.
Go to Tools–>Options–>Advanced–>General, and select the Config Editor option.
In the Config Editor, search for “mailnews.thread_pane_column_unthreads” by typing it in at the top. When you see the preference, change the value from “True” to “False” by double-clicking on it, or by right clicking and changing the value. This will help you keep the threaded view stuck across the different sorting methods.
I find the threaded view useful when browsing the list of bug-related emails, for one. Of course, I use the Claws GTK email client much more than I do Thunderbird, but I have Thunderbird setup on an infrequently used office computer, and I thought many of you might be using Thunderbird anyways.