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Firefox doesn't open in fullscreen

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Usually after I close Firefox while in full screen and reopen it, it opens in full screen. But now for some reason it doesn't. Deleting "xulstore.json" doesn't help.

Usually after I close Firefox while in full screen and reopen it, it opens in full screen. But now for some reason it doesn't. Deleting "xulstore.json" doesn't help.

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Works like that for me now, too. Looks like a change in Firefox 47.0.

Further information: Firefox 47 has 8 Bug fixes that are related to fulllscreen. Two are related to e10s and 6 for changes made to the fullscreen API. Not sure which one broke the "restore" previous session after exit in fullscreen mode feature.

Modified by the-edmeister