Even there were news that the will only be 11 betas as I described in one of my posts and that beta 12 was released last week following several preview versions today I have started seeing beta13 preview. It looks like beta 12 will not be a release candidate as was discussed, so there is a good chance that b13 also won’t be a RC.

I haven’t tested the new beta 13 preview yet, but I guess we’re close to the final Firefox 4.0.