I've got Firefox mobile installed on two different devices, a Samsung Galaxy S (Vibrant) and LG Optimus Pad (G-Slate), and am having the same issue on both. Images on web sites render extremely blurry/low quality, in a way they don't on any other browsers I have installed on either device. It happens regardless of if I'm connected via WiFi, 3G, or 4G. The resolution on the G-Slate is high enough that Firefox shouldn't be having to do any zooming but the rendering quality makes it impossible to use on the majority of sites I use. I looked around in the settings couldn't find anything that seemed to resolve it. It's not rooted so I can't take screencaps, but here's a pic: http://bit.ly/k2aaHZ