Arkose: You can use addons, settings and/or about:config tweaks to make the latest Firefox version look and behave exactly way you want. I use
UI Fixer and
Status-4-Evar to keep Firefox 10 looking exactly like Firefox 3.5 (or whatever version that was before the overhauls began). These are just the ones that worked for me; there are various others that may be better for your purposes depending on what specific things you're wanting to retain.
It's disappointing that addons are needed to regain culled look and feel options but this way you get Firefox the way you want it without being stuck with an end-of-line version that is inevitably going to be abandoned by addon developers.
Yes, I know. Part of my problem involves not being bothered to tweak things, not being bothered to move on to and grow accustomed to another browser, supposed fixes to make incompatible addons work in newer versions of Firefox didn't seem to do anything, and the fact that, if there's an option to disable auto-updating and nagging, I haven't been bothered to find and enable it yet.
There's a pattern here, yes, but my point is that part of the problem (the part that doesn't involve my own sloth and apathy) involves the fact that "no thanks" is supposed to translate to "piss off, I don't want any, no soliciting, leave me alone, nobody is here, sorry, I'm dead" not "pester me about it when I've hopefully forgotten that I clicked 'no thanks' and not 'ask me later', and if that doesn't work, fuck the user, just do it anyway, we know better, it's for his own good, it's inevitable, and ultimately he won't really mind if we make the next update after this one so much worse that the current one seems great by comparison, just like every layout overhaul of his favorite websites".