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Firefox on Startup

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On startup why doesn't my Firefox homepage open in full screen mode any more? When I tap the Firefox Icon to begin a Firefox session, Firefox opens in a small window in the upper left corner of the screen. I can minimize that small screen. Then tapping when the Icon once again, Firefox opens full screen. I am unable to get a screen shot to show this small window.

On startup why doesn't my Firefox homepage open in full screen mode any more? When I tap the Firefox Icon to begin a Firefox session, Firefox opens in a small window in the upper left corner of the screen. I can minimize that small screen. Then tapping when the Icon once again, Firefox opens full screen. I am unable to get a screen shot to show this small window.

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If you are on Windows you have to configure the program properties by right clicking the icon on your desktop and choosing "Properties" in the drop-down menu, then select the "Shortcut" tab and on "Run" option select "Maximized". Here are the detailed instructions: https://www.computerhope.com/tips/tip201.htm

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