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FULL SCREEN DOES NOT WORK CORRECTLY WITH SOME FACEBOOK GAMES

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Several FACEBOOK games show OVER MAGNIFIED when going into full screen. Some examples are SPADES PLUS and JUNE's JOURNEY. The problem started about 3 weeks ago. The only "workaround" I can find is to try to hit F11 and / or control - . It might take a dozen or so attempts to finally get it to show correctly. The problem does not exist in OPERA or CHROME. ( These browsers have their own unique problems, such as extreme slow response in Spades Plus ).. I have uninstalled and reinstalled Firefox several times to no avail. I am using a LAPTOP with WIN 7 OS. All has worked well up until about 3 weeks ago.

Several FACEBOOK games show OVER MAGNIFIED when going into full screen. Some examples are SPADES PLUS and JUNE's JOURNEY. The problem started about 3 weeks ago. The only "workaround" I can find is to try to hit F11 and / or control - . It might take a dozen or so attempts to finally get it to show correctly. The problem does not exist in OPERA or CHROME. ( These browsers have their own unique problems, such as extreme slow response in Spades Plus ).. I have uninstalled and reinstalled Firefox several times to no avail. I am using a LAPTOP with WIN 7 OS. All has worked well up until about 3 weeks ago.

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Hi rvanceimvu, What are your Zoom settings?

Settings -> General -> Zoom