I used Prism for a bit, but I have dropped it. For apps like Gmail or Google Apps, I've found its easier to use Chrome instead, as the main goal is keeping Firefox's inevitable crashes from interrupting their function.<p>For Songza and Pandora, for which I was also using Prism, I've found Xenocode's Virtual Apps to be much better:<p><a href="http://www.xenocode.com/Music/" rel="nofollow">http://www.xenocode.com/Music/</a><p>I use their Pandora app on a daily basis.