the page my.avast.com does not shows in new Firefox

Why the page my.avast.com does not shows in new Firefox?
I get only the loading icon.
On Edge browser shows correct.
Thanks.

Reinstall FireFox.
It is working without a problem for me.

No problem with firefox 44.0.2.

seems probably some extension is blocking I must figure out which

First try running firefox (Safe Mode), all add-ons are disabled, that, if it works confirms an issue with an add-on.

the problem was the extension Avira Browser Safety
, after I disabled it the page worked like a charm…

Thanks for the update.

Security based add-ons can have an adverse effect.