firefox 78.0.2 can not connect to mikrotik sites ...

A couple of days ago I updated Firefox from 78.0.1 to 78.0.2 and now I am unable to connect to https://www.mikrotik.com and https://forum.mikrotik.com
Running FF on OSX 10.14.x
no problems with Safari, Chrome or Brave.
Any suggestions ?
I allready cleared FF caches etc …

Not sure, but I am guessing something with Firefox and by default enabled DoH in it.

tnx for the suggestion,
my firefox has DOH disabled …

“unable to connect” doesn’t exactly convey much information.

Firefox issue, change browsers.

yeah, that is the windows solution, i’d prefer the *nix solution, find the cause and solve it …
Screenshot 2020-07-11 at 19.48.16.png
and YES, firefox will connect to other sites …
and YES, chrome, safari and brave will connect to mikrotik .. (using chrome now)
until FF 78.0.1 I was using FF for mikrotik.com

Using Windows and DNS of Google I never had problems loading MikroTik sites. I always use Firefox on Windows and Android.

Regards.

still not working on FF 78.0.2 on OSX …
all other browsers work.
to bad no error message or logging …

I would not touch FF with a ten foot pole, but for you, I ran the portable FF 78.0.2 and I see no problem.
mt.png

hard to say what causes the issue for you, as I also can’t replicate it.

did you also try https://mikrotik.com ?

not www and not http://

Hi @Normis,

thanks for keeping with me,
somehow the problem disappeared after a couple of days.
I really hope to find a cause but the lack of logging makes that difficult.