Change threaded inbox view in Thunderbird so that subject lines are the most recent subject in the thread

Question

Currently, when using Thunderbird in threaded view, the subject line for each thread is the subject of the original, root email. I would like to change this so that it is the subject of the most recent email. For example, the following thread

*- Original subject
|--> Re: Original subject
|---> New subject
|----> Re: New subject

when collapsed displays in the inbox as

*- Original subject

whereas I would like it to display as

*- Re: New subject

Despite my best efforts, I cannot find how to change this. Is it possible without editing the source and compiling my own version?

Answer 1

Read this: Mozilla Wiki - MailNews:Message Threading

You probably want to set mail.strict_threading=false