lexluthermiester: Nope didn't work, but using a different browser did. Palemoon[a Firefox variant] works, but Firefox itself doesn't? Seems hinky...
zeffyr: Is your browser fully updated then? It looks like some of the older versions.
The newest version is 29.0.1. I'm using 28.0 It's not like it's that old and I'm not updating again until they bring back the back and forward buttons in the menu bar, among a few other things
InkPanther: I'd say it's because of disabled JavaScript.
E: but on the second thought I'm not so sure...
Javascript is enabled and working for other sites. This is a GOG.com only problem.