How Fast Is Firefox 4?

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Mozilla has the finish line for Firefox 4 in sight: Beta 9 was just released and the first builds of Beta 10 have been posted to the company’s FTP server. There are just over 100 blocking bugs left and there isn’t much that will change until the final release will be available sometime in February or March. Time to check how fast this new browser is. The first article of this series focuses on JavaScript performance.

It has been almost 9 months since Firefox 4 was first announced and Mozilla has covered a lot of ground and has overcome significant obstacles to come up with a competitive browser that returns to what has made Firefox great: A fast and nimble browser with features that are setting the standard for everyone else. One key requirement for Firefox 4 was to catch up with its rivals as it was clear early last year that 3.6.x wasn’t up to the task anymore. Before we are looking at Firefox 4′ features, we will have a look at its performance capability. Firefox 4 Beta 10-pre is pretty darn close to the final version and should give us a good idea how the browser stacks up.

So let’s look.

Also: Firefox 4.0 beta release slights Linux