I think this should be the first order of business.
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Perhaps the website could try to default to the https version? Perhaps it even does already?
I’m using a bookmark and for some reason it was not. Thanks Sanya and JoWa.
It does not, currently, but I have suggested that.
Any update on this?
Nothing that I have seen. 
BTW, the development release of HTTPS Everywhere has rules for forums.comodo.com enabled by default¹. It will be released as stable in about two months².
¹ HTTPS Everywhere Atlas
² [HTTPS-E Rulesets] Rulesets freeze, starting today
Thanks :-TU
Might have to give https everywhere a try. 
Another tip is to use Dragon’s feature Force Secure Connections.
In Chromium-browsers the same can be done manually, by entering the domain in question in chrome://net-internals/#hsts, dragon://net-internals/#hsts, opera://net-internals/#hsts etc. :-La
I did not know about that Chromium feature. Thanks JoWa. :-TU
You’re welcome.
The feature is quite well hidden. 
HTTP Strict Transport Security (HSTS) (RFC 6797) is powerful and well worth enabling for certain domains.
Google maintains an HSTS-list, which is used by Chromium and (with exceptions) Firefox.