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On Windows 11, Firefox doesn’t show some scrollbars. This affects the projects and topology screens of FlexDeploy. There are 2 options to fix this problem.

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Option 1: Set scrollbars to always display in Windows 11. This is an operating system setting so it will impact all applications.

  1. Go to Settings > Accessibility > Visual effects
  2. Set “Always show scrollbars” to On

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Option 2: Change settings in Firefox

This will only impact Firefox but takes more effort. Note: there may be other settings in about:config which adjust these scrollbars as well. If you find something new/different, please pass it along.
  1. Open a new tab
  2. Go to about:config
  3. Accept any risks
  4. Search for widget.non-native-theme.scrollbar.style
  5. Change value from 0 (Default OS) to 4 (Windows 10 style)
  6. Search for widget.windows.overlay-scrollbars.enabled
  7. Change value from true to false
  8. Search for widget.non-native-theme.win.scrollbar.use-system-size
  9. Change value from true to false