I subscribe to a number of blogs that post audio files on a regular basis (like composer of Battlestar Galactica and The Walking Dead, Bear McCreary and a number of game music sites). Connor McKay’s YouTube5 Safari extension addresses most videos I encounter and “Open in Google Chrome” works for the rest but while video might demand attention, audio is ambient. It doesn’t makes sense to keep a second browser open just for background noise but I couldn’t find a similar extension for audio. So I made one. HTML5 Audio Safari extension replaces a number of Flash-based audio players with the HTML5 audio element. I’m not taking requests for additional players—I’ll be improving support as my needs dictate—but if you, fellow savvy developer, add support for additional players, let me know and I’ll drop it in (credited, of course).
Between this and the ClickToFlash extension, I’m quite close to a non-Flash Tumblr experience.
Related: Has anyone written an all HTML5/non-Flash Tumblr theme?