Macbook screen randomly turns blue, then restarts

This has happened twice and it is frustrating. I'll be working away as usual, then my Macbook's screen suddenly turns blue (like the start-up blue before your desktop loads) and then it behaves just as if it restarted. The first time Firefox didn't remember any tabs, but the second time it did.
I have done a little research and saw that people are saying it has something to do with Rosetta apps. Anyone have a solution apart from saving my work frequently?

Welcome to Apple Discussions!
That is odd behavior, and I'm not sure what would cause it. You might try a PRAM reset and see if that helps:
http://support.apple.com/kb/HT1379?viewlocale=en_US
Good luck!

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