Does Firefox portable (4.0.1) fully support HTML5?

Hello,
I want to create a firefox-based program. For a good look this would require HTML5. Does the newest Version of Firefox support HTML5? To what extent? Is there any good information resource for this?
Thanks!
Markus

Yes, Firefox supports HTML5. See this article for more details: [http://www.h-online.com/open/features/What-s-new-in-Firefox-4-0-1212755.html?page=2 What's new in Firefox 4.0]

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Does Firefox portable (4.0.1) fully support HTML5?

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