Took me a while to figure this one out. I regularly had Skitch URLs with the little speaker emoji in the URL. I finally figured out that this happens when you take a screenshot of a Chrome tab and another tab in the same grouping has music/sound playing. Below is an example of the URLs I am seeing. http://capture.creativeanvil.com/Skitch_Mac_Product_Feedback_-_Evernote_User_Forum_?_1D2698A1.png That URL isn't playing any sound however I have another tab open that is. If I close that tab, the emoji goes away.