Even if it's the extension fault, why they aren't sandboxed properly, or even why there eisn't basic reporting about the offenders boggles my mind. Maybe it's because of the API... I find it hard to believe it isn't possible to retrofit some of that on the current design to be honest.
And now, because they couldn't handle it, we're getting extensions with crippled power, that are very (very) far away from feature parity with the old ones.
I wasn't happy before, and I'm not happy now, albeit for different reason.
The fact that I'm using Firefox of course means I'm not thinking too much of other browsers. The fact an extension in chrome can't add a frigging sidebar is a personal pet peeve of mine.
I remember when Firefox was the lightweight alternative to Internet Explorer 6...