So I've just tried to play The Aberration Inside game but there's a pop-up which says: "You need a browser which supports WebGL to run this content. Try installing Firefox." And yeah, I was using Firefox...
Hey @Wojas654 I just took some time trying to duplicate that error and I could not.
This is outside my ability to troubleshoot with you. If I can offer a suggestion, you may want to do a quick Google search for how to check if you have WebGL enabled for your browser.
Take special note that the browser may have disabled it to prevent crashing because your video card/drivers do not support the magic that is WebGL. So please do some research before you go that route. Even if you enable it, you may still have problems.
Hope that helps get you started looking into what caused that error.
Same problem for me, happens with HTML games like The Aberration Inside, Saturated or other (but Corpseburg works fine). I uninstalled/reinstalled Firefox, updated it but some HTML games still don't work ...