Please be aware that among other extensions the latest 0.60.x release of Thunderbird breaks the DL ticket plugin. I'll note it on the wiki tomorrow.
See here for more details:
https://www.mail-archive.com/dl-ticket-service@thregr.org/msg00459.htmlA tale of bad planning and execution.
In my experience that just about sums it up for me.
Quite frankly if I could find a desktop client anywhere near as good I'd have dumped it years ago due to the attrocious attitude of the devs. Any comment beyond fanboy love is silenced, censored or blocked (I have been a few times!). Or worse told that you will love feature x in the future because they do....
Before you suggest it.... I hate webmail
Ah well. Just have to stay on the old version a while longer.