Firebug 2.0.1 is buggy Rated 2 out of 5 stars
I'm on a 2.0.1 version, and it is absolutely horrible. It breaks at places where there is no break points. Its much slower than it use to be (I'm guessing it is because they added the fancy text coloring by default, which was not the case before), and sometimes it completely skips your breakpoint as if they were not even there. I'm really looking forward to the fixes and updates.
Found another annoying thing with this release. When you add a Watch, if the Watch is long enough, you will not be able to view it unless you right clicked and choose edit Watch. On the older version, expanding the Watch tab would expand all the Watches so that you can distinguish one Watch from another