Hi all, I'm a long-time Firefox Mac user, and I have a question about bookmark and tab icons. I just upgraded to a MacBookPro with Retina display running Yosemite, and now all of my bookmark icons and some of my tab icons are in low res (looks like 16x16). I've searched and searched, but can't figure out how to change the icons to a better res. Superficial issue, sure, but it makes my browser window look kinda ugly. Any suggestions?