Thanks for the tip. Unfortunately, my FF 58.0.2 and 59.0.2 still keeps doing TLSv1.2 while the Nightly goes TLSv1.3. Perhaps a matter of the previous draft still used in the releases FF.
Just FYI. > Am 03.04.2018 um 17:09 schrieb Mario Brandt <jbl...@gmail.com>: > > Hi Stefan, > > On 3 April 2018 at 14:58, Stefan Eissing <stefan.eiss...@greenbytes.de> wrote: >> Chrome 65.0.3325.181 and FF 58.0.2 both do not on my MacOS desktop. > > With FF open the about:config page > > Find > security.tls.version.max > > set the value from 3 to 4 > > Cheers > Mario