This guy sums up my sentiments on the issue quite nicely. Firefox just can't hang anymore in the presence of Chrome, and Safari (and arguably even IE). I dig plugins as much as the next guy, but it's not enough to make me open Firefox for anything more than testing these days.
For what it's worth, it's generally considered polite here to respond to things you disagree with in comments rather than downvoting them. Downvotes are reserved for things that detract from the discussion such as personal attacks and spam.
That said, it's surprising to find so much disagreement and denial to a common sentiment like this. I used to like Firefox a lot. Then it didn't substantially improve itself for 4 years. Then it added an inch of toolbars to the top of itself. And it started taking 10 seconds to load up (often announcing that it needed to close again so that it could update something.)
Then somebody else came out with a browser that pointed those things out, and it felt like a breath of fresh air. It just seems to me (and the author of this item) like Firefox has lost its way a bit.
> I dig plugins as much as the next guy, but it's not enough to make me open Firefox...
Then you don't, in fact, dig the plugins as much as THIS next guy. Mind you, it's the only thing that brings me back to FF, but if Chrome supported even just adblock, I'd jump in a second. But the plugins are its killer feature, ^2.