Hello,
I just got disappointed like a lot of people here to hear that Firebug was no more available and that we had to shift on FF Dev. Edition.
One of the feature that I liked the most as the ability to check which CSS rule would apply to some HTML. Then make a search of this class after choosing CSS tab on the left. Firebug would then show where the class is mentioned in all CSS files and I could check which one is being applied by changing the values there.
Anyone has the same issue as me ?
Regards,