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screen resolution set to recommended resolution will not hold

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When I start Firefox the screen resolution opens with 640x480. When I change it to the recommended 1024x768 this does not hold. The next time I start Firefox it opens with the lower resolution.

This is a new problem as I've been using Firefox for years without trouble. I've tried refreshing but this didn't resolve problem.

I use Windows 7 Professional and have the latest version of Firefox.

When I start Firefox the screen resolution opens with 640x480. When I change it to the recommended 1024x768 this does not hold. The next time I start Firefox it opens with the lower resolution. This is a new problem as I've been using Firefox for years without trouble. I've tried refreshing but this didn't resolve problem. I use Windows 7 Professional and have the latest version of Firefox.

Valitud lahendus

hi MargieB, please right-click the firefox shortcut on your desktop, go to properties > compatibility and make sure that all compatibility options are unchecked.

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Valitud lahendus

hi MargieB, please right-click the firefox shortcut on your desktop, go to properties > compatibility and make sure that all compatibility options are unchecked.