If you are encountering problems by using your Macbook’s iSight Camera with flash programs (facebook, youtube, chatroulette, etc..) is because Flash doesn’t find the “USB Video Class Video” correctly as your cam in settings.
Anyway you can find the solution here:
Detect in you flash settings if you can find two “Google” cams. If yes:
- Launch /Library/Application Support/Google/GoogleVoiceandVideoUninstaller.app that will remove them if you have them installed
- Update Flash version if it’s not updated (check on http://www.adobe.com/software/flash/about/)
- Launch the website you like and choose in setting “iSight Camera”
It worked for me!