Firefox 3.5 beta 4 is out and among the news is support for various open-source video formats. The following video shows just a few examples of what to expect.

Basically the video acts like a normal web page controlled by JavaScripts and according to TechCrunch this might be the beginning of the end for Flash movies.

You can always get the latest beta here if you want to give it a go. Developers will find answers and info here.

Now I’m just waiting for the final release – what’s your thoughts about the new “no-plugin needed” thingy? Will it open a new world of security holes or will it be for the better?