From the bug report , which also has a screen shot mock up "This would make it easier to identify the folders of diffrent mail accounts. This would also make sense for the top account nodes."
@rsbrux,https://wiki.mozilla.org/Thunderbird:Testing:Memory_Usage_Problems has a much longer list. If you still have a problem after checking that list, please create a question at https://support.mozilla.org/ with information about your accounts an...
