Soo... I finally gave-up, and installed Poudrière, and it took over 12 hours, it it managed to compile Firefox without a hitch; however, when trying to visit some sites like Google, Youtube, Bing, and Facebook, Firefox displays an error page that says:
An immediate fix for this is to go to about:config and disable
Your connection is not secure
The website tried to negotiate an inadequate level of security.
www.youtube.com uses security technology that is outdated and vulnerable to attack. An attacker could easily reveal information which you thought to be safe. The website administrator will need to fix the server first before you can visit the site.
Error code: NS_ERROR_NET_INADEQUATE_SECURITY
An immediate fix for this is to go to about:config and disable
network.http.spdy.enabled.http2
, though, I was wondering if anyone knows the real way to fix this (i.e. the real source of the problem, and the real remedy).