Hello Pierre, On Fri, Jun 01, 2018 at 02:21:46PM +0200, Pierre Bernhardt wrote: ... > Also I will rerun my tests on a fresh account with a fresh installed > thunderbird 52.8.0.
before you put more energy on reporting here, I believe all theses problems and issues you probably have discovered are not Debian specific and I can't really following you now. So I hereby want suggesting you forward your experience directly to Mozilla and write down your problems into the Bugzilla bugtracker on Mozilla please? https://bugzilla.mozilla.org/ We can set up a forward to the issue on the Buzilla so we get a notice once Mozilla has changed and worked on the report. It's in my eyes a bit problematic for me to forward such complicated behavior as a man in the middle then. The best would be you describe your concerns and any feedback directly to the people of Mozilla. Thank you! Regards Carsten