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Open in Full screen by default in OS X?

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How can I set Firefox to open in Full Screen mode by default in OS X 10.8?

The problem is when opening app you must always click the full screen icon to enter the mode.

How can I set Firefox to open in Full Screen mode by default in OS X 10.8? The problem is when opening app you must always click the full screen icon to enter the mode.

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Hi mozillafrilla, see if the next is helpful : R-kiosk add-on

thank you

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Thanks ideato. But I don't think I'm looking for all those features. Chrome remembers you were in Full Screen when you quit the app and returns there. Would be great if FF would add the feature.