From the Mozilla blog and Mike Beltzner’s blog post, Mozilla Firefox 4 was announced and still in development. The release date is still not announce yet. But in this Firefox 4 it will have HTML5 supported, as like other browser Safari and Internet Explorer 9.
Since the it was announce by W3C, HTML5 is next standard of HTML. And it will support on this next release of Firefox 4.
So what’s new in this Firefox 4:
1. Fast: making firefox super-duper fast
2. Powerful: enabling new open, standard Web technologies (HTML5 and beyond!),
3. Empowering: putting users in full control of their browser, data, and Web experience.
Here is the presentation of plans for Firefox 4: