Firefox, unfortunately like many software products, is now getting in my way. I understand people prefer simple, automatic (dare I say "Apple-magic-style") tools that anticipate what you want and do it for you. I am not one of those people. I expect software to do absolutely nothing unless I explicitly tell it to do so - software could be doing something I actively don't want it to do, or I could just be the 99th out of 100 people who don't want something that way and it'll just be wrong. To this end, I have several personal websites to which I haven't bothered to set up with "www." subdomains; I don't need them and since the model of "subdomain/domain" never really took off outside of the enterprise there really isn't much of a point to it anyway.
My own websites no longer work with the browser I've chosen to stuck by for decades, screaming to anyone who'd listen that Chrome was a trap and we'd just end up with IE all over again - because I can't tell it not to do something I never asked it to do. Pressing enter adds a "www." to what I type no matter what I do. about:config isn't good enough -- there are too many overlapping flags and as a user I just shouldn't have to do this. Settings should have a "improve what I type/get out of my way" switch. You're supposed to be better than this, Mozilla.
