If you use Firefox as you primary browser and own a Retina display Mac, you’ve no doubt been having problems due to the resolution incompatibility.
However, from today, that should no longer be a problem. Firefox 18 has been released, bringing full support for Retina displays as well as other performance improvements.
According to Mozilla, the improvements to JavaScript compiler mean that Firefox performs 25% faster with games and web apps. If you add Retina support to that, it seems like a pretty important update.
Check out the download links below: