Ambitious Mozilla is always working to keep Firefox on top of the browser wars. It released Firefox 3.5 a month ago, recently released screen shots of Firefox 3.7 and now one more Firefox 4.0.

At their wiki site Mozilla has released two mock up themes for Firefox 4.0. These are named A and B.
Changes Expected in Firefox 4.0

1. All new vista themes, pretty much looks like Google chrome.
2. Version A has tabs at the bottom; it is pretty much like our present beloved browser.
3. Version B has tabs at the top of the browser and it’s all together a new concept, it may not be liked by conventional users who are used to tabs at bottom.
4. There is a new tool tab at the top right most, which will end the era of all conventional tabs.
5. There are unique features of this combo Refresh, stop and go tab. It will turn green when you are typing an address, will turn blue when you try to refresh and turn red when you stop.

So, there are many new changes in the upcoming Firefox 4.0. Except for the version B which looks a bit odd, all are friendly to the user. Let’s exactly watch what they come up with.

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