KenB - 10:38 pm on Dec 27, 2009 (gmt 0)

I primarily use Firefox, but did recently discover Opera's Dragonfly and I really like it. Dragonfly and Firebug have a lot of functional overlap, BUT Opera/Dragonfly are MUCH faster. I find Firebug severely slows down page loading, which doesn't help when trying to find ways to speed up page download/rendering in general.

When doing speed tests, the testing tools can't be having a major impact on page loading speeds compared to the load time of given pages when the testing tools aren't being used.

I'm probably not going to switch from Firefox to Opera, but I was impressed in general with Opera and how fast it loads pages. My observations are that it is the fastest of the browsers I test against on WinXP.