I heard there are some problems with Firefox, but this seems to be different. I noticed it today.
The site works fine, all data are available, but in the game page all “arrows” (bottom) and almost all icons of dock (right) have disappeared.
Also there are some strange characters (see the name of my opponent in the chat).
Any suggestion?
I have Firefox Quantum v60.0 (64 bit).
It just had an upgrade. Issue was present before and still is after the upgrade.