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When quitting firefox screen turns blue on MacBook Pro running OS 10.6.8

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Just updated Firefox to 8.0. When I am shutting down MacBook Pro with OS 10.6.8, I close each application before shutting down computer. When I quit Firefox, the screen turned light blue. I had to force shut down the computer and restart to get any response. This problem had never occurred until I updated Firefox to 8.0.

Just updated Firefox to 8.0. When I am shutting down MacBook Pro with OS 10.6.8, I close each application before shutting down computer. When I quit Firefox, the screen turned light blue. I had to force shut down the computer and restart to get any response. This problem had never occurred until I updated Firefox to 8.0.

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hai. same problem. the system is still running (in the background, but you can't see anything because of the blue screen). i checked this by using some keyboard-shortcuts: press SHIFT + CMD + Q and then ENTER for closing all apps and logging out. the log-in window appears... or: press the POWER-button (short, once) and then ENTER for shutting down your computer normaly. this is not a solution, but better than force shut down. so far... over and out.

EDIT: after updating all plugins (the only outdated was: flip4mac wmv plugin) it worked again after restarting the computer!

Modified by mondbewohner