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Firefox keeps disappearing offscreen when changing orientation.

  • 2 replies
  • 1 has this problem
  • Last reply by cor-el

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I am using a Surface Pro 3. Often when changing orientation or coming back after sleeping the computer, a window will whisk away offscreen when I try to click on it and I cannot get it back. It appears in the taskbar (with no preview image), but can't get it back.

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Can you open the system menu via Alt+Space?

Start Firefox in Safe Mode to check if one of the extensions (Firefox menu button/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox menu button/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window