I can get into the forum using Chrome on my mac but for at least 24 hrs Firefox can't access it:
Your browser sent a request that this server could not understand.
Size of a request header field exceeds server limit.
Apache/2.4.52 (Ubuntu) Server at blogstaging.pjrc.com Port 443
Bad Request
Your browser sent a request that this server could not understand.
Size of a request header field exceeds server limit.
Apache/2.4.52 (Ubuntu) Server at blogstaging.pjrc.com Port 443