when a site doesn't work. I hate having to open Chrome or IE when I click on a link and nothing happens, and I've given up on Firefox several versions ago when it got too bloated.
And it's not going to get any better-- we keep getting new "standards" that allow web developers to do amazing things at the cost of massive downloads and spaghetti code that browsers just can't keep up with. I've looked at the source code of some pages and was shocked at the number of frames, pages and pages of Java code, and calls to plugins so they could make me watch a 30Mb movie before I could simply get the one paragraph of text info I wanted. All of this has to be parsed by the browser, which might have its own bugs, and the guy writing this bullshit code has no time to check it on every version of every browser. So, of course, it's our fault when things don't work.
Some of it has to do with security. At work we use Lotus Notes for email and the security guys spent a lot of time making it secure on our home computers. It yells at me when I open it with Opera, but at least it works, although in a very limited way.
What marvels does the latest FF uncloak that previous versions don't? And is this necessary just to buy something?
Anyway, v3.6 is pretty old and there are security updates and some newer things now that are worthwhile. Might as well give in and get the new one, at least for occasional use.