There’s already Firefox 5 available, but it seems that Mozilla has already started working on the next iteration of the mobile browser, Firefox 6. A beta version of the app has appeared on the Market and clocking in at 14MB, it does seem to be on the hefty side. Here’s what the description says:
New in this release for Android:
Personally, I have found Dolphin HD and Maxthon more intuitive than FF5, and consuming less resources, but may be Firefox 6 will win me over. Head over to the Market on your Android phone or install directly from the web to try.