No, I hadn't noticed it until testing it for that comment (actually I didn't notice an ad started playing for the first video I clicked on and even the ad itsel

No, I hadn't noticed it until testing it for that comment (actually I didn't notice an ad started playing for the first video I clicked on and even the ad itself was webm), though I do feel like I've gotten almost all html5 videos for a while now (I have click to play on for plugins, so the ones that are ready to go stand out). > After this the next step is probably to start delivering HTML5 in preference to FLash, where possible. Wonder what the plan is for that transition? Notably, if you go to the html5 youtube page (http://www.youtube.com/html5 http://www.youtube.com/html5) in incognito mode in Chrome, it actually says "The HTML5 player is currently used when possible", so I assume this is the default now. That isn't the case in Firefox, where the option to request the html5 player to be the default is still there. Maybe it's a vp9 thing? I don't believe Firefox has included vp9 yet (and the player says: 'codecs="vp8.0, vorbis"')