Today Firefox 5.0 was released. Since there are not many visible changes I have decided to test the speed again and compare it to the speed of Chrome. I am using Firefox 5.0 final and Chrome 14.0.797.0 dev-m versions.
Here are the results of the Kraken 1.1 test:
Firefox: 8506.5ms +/- 3.6%
Chrome: 6535.9ms +/- 6.9%
Here are the results of the Sunspider 0.9.1 test:
Firefox: 452.6ms +/- 12.7%,
Chrome: 370.4ms +/- 5.8%
I have run the test twice on the same machine, but with different number of running tabs (7 in Chrome, 100+ in Firefox). The numbers above are showing the best result of both runs.
It seems that Chrome 14 is considerably faster than Firefox 5.0. I have repeated the tests with a Firefox 5.0 opened with only 7 tabs and the results were different this time:
Kraken: 7164.3ms +/- 1.1%
Sunspider: 326.7ms +/- 2.1%
It looks like Firefox gets really slow with a large amount of tabs open. I haven’t tested the speed of Chrome with 100+ tabs open because my system can’t take it.
It’s interesting to see that each browser fails the test that it has created or helped create. Overall, Chrome still feels faster.