Is Firefox Going Too Far?

So, I've been hoping HTML 5 would finally see the light of day, after how many years waiting. And I've been pleased with the support Safari's had from I believe version 3 on. Well, I thought it seemed a little funny and curious when I saw an unexpected message after updating to Firefox 3.5.2 the other day. On the "What's New" page (found here), it said that "Firefox 3.5 is the first browser to support open video formats, allowing movies to become part of today’s dynamic web pages without requiring a plug-in."

Now I'm not going to argue the point about "open video", still looking into what that is exactly. However, I am going to argue that Safari has had non-plugin-requiring video for quite some time. I didn't know exactly when that occurred, so I started searching. The first reference I found is from the WebKit site, HTML5 Media Support. This was from 12 November, 2007. That's a ways back, and at this point, support of the video tag was already in the nightly builds. Then I found a post from streaming video site about how Safari was the first to support the new HTML 5 media tags, called Apple's Latest Safari Browser First To Support New Video And Audio Tags In HTML 5. This one comes from 4 April, 2008.

So I have to ask, is it just me, or does this seem quite presumptuous of Firefox to act as if they're the first to provide video content sans plugin? Am I just reading this too wrong, and the focus of their statement is really supposed to be about "open video", because it's not really the impression I get.

In either case, I am grateful that HTML 5's future can be helped by support in a much larger market share browser such as Firefox over that of Safari. I look forward to the future of media in HTML.

Looking for responses here, from the zero people who read my posts who even care about this discussion :)