The newest version of the Mozilla web browser, Firefox 4, went through a long developing stage, the first beta being available since January 2010. Meanwhile, the expectations from the users of the old Firefox 3.6 grew higher and higher as specially because the other developers have been very productive and the alternatives are tempting.
Thankfully, the wait is over! Firefox 4 has lived up to all expectations. The Interface of the old Firefox 3 has been upgraded to a new and much more optimized one. Behind the flashy interface, we have a completely new browser, the source code has been all but rewritten and it has many optimizations for speed and support for the newest technologies.
The tests show that the browser has a very high compatibility. Taking the Acid 3 test, which is one of the most powerful tools for evaluating the compatibility for web browsers, Firefox 4 does not disappoint, scoring a impressive 97/100 points and is rated higher than Internet Explorer 9 with 95/100 and is at a tie with the newest Opera 11.1. Although it didn’t score as much as Google Chrome, who is the undisputed leader with 100/100 points!
- Internet Explorer 9 – 359.2ms +/- 2.3%
- Opera 11.01 – 393.0ms +/- 0.3%
- Firefox 4.0 – 405.8ms +/- 0.7%
- Chrome 10 – 424.0ms +/- 1.7%
- Chrome 10 – 6605
- Opera 11.01 – 5991
- Internet Explorer 9 – 3662
- Firefox 4.0 – 2831
As you can see, the benchmarks placed Firefox 4 almost at the bottom of the list. We can definitely say that Firefox 4 needs some optimizations if they want to compete with the other web-browsers.
In tests, the speed of the browser is quite good and it behaved just as expected and we did not notice loss of speed when comparing with the other browsers. This being said, we can say that in normal user usage, you will not be able to notice any loss of speed.
Thus, it is still your very own speedy browser for normal usage..