While watching movies on the iPhone version of YouTube I always noticed videos looked better. I just thought it might be the smaller screen. With this new Add-on for FireFox, I think it confirms that there are different quality versions of videos at YouTube. In fact, according to Josh, this Add-on streams from video.l.google.com instead of youtube.com. This makes sense to me because Google videos always supported much better video quality. Perhaps the YouTube player on the iPhone does the same thing?

The Add-on for FireFox is called “Better YouTube Firefox extension” that really does improve the video quality of YouTube, depending on the video that was originally uploaded. I always upload videos in a better quality than is shown at YouTube, and I can confirm that it does work with a side-by-side comparison of two of my videos using Safari (left) Vs. FireFox (right) with the Add-on:

(Click for full size and to see the detail in the “Jason G.” logo bug)
(Click here to use this video for testing)

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