I think I see the source of our disagreement. You seem to say that Chrome's impressive infrastructure for web apps gives it a potential advantage. I certainly agree with that, but the capabilities of Chrome apps aren't widely used right now, so the actual strength of the system is still unknown. The Chrome Web Store could still end up like WebOS: great platform, few developers.
I don't agree with the article that Firefox is in trouble, but I'm a Chrome Store dev and I've grown tired of reading people online saying things like "they're just bookmarks", so I apologize if I came across as attacking. I think the advantages that Chrome (and to a lesser extent IE) has will eventually be rolled into the spec, and will be negated, however I don't think Mozilla is doing enough to push their alternative as viable. Their spec, to me, reads as web app best practices and the only original thing they're providing is an install button api.