I recently decided to copy all the fonts from my old PC to my new MacBook Pro. Big mistake. After installing all the fonts in Font Book, the fonts in Firefox (and maybe in a few other apps that I don't know about yet) got mixed up, causing it to be barely usable. For instance, the application's font seems to be a mispositioned Arial variation, and the search and url inputs both look like Lucida Console. I read a possible solution that required deleting duplicate fonts, but that didn't work. All I want to do now is restore my fonts to the way they were originally. I have access to the original font folders (on another mac), so I was wondering if I could simply copy the two font folders into the messed up folders on the MBP from the Windows partition. Would this restore the fonts, or is there an easier/better way? EDIT- Websites and website inputs render exactly as I would want them to. The problem is with the fonts for the application itself. Reinstalling doesn't help, and no other applications seem to be affected.