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Videos stall; so trying to uncheck "Enable hardware acceleration" in Flash but can't

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I control click to open settings in the Adobe Flash Player to uncheck "enable hardware acceleration" but the mouse has no effect on the window. Any way to uncheck this elsewhere in Firefox?

Thanks

I control click to open settings in the Adobe Flash Player to uncheck "enable hardware acceleration" but the mouse has no effect on the window. Any way to uncheck this elsewhere in Firefox? Thanks

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Separate Issue; Your System Details shows;

Installed add-ons

Forecast Plus 0.1.3.1.1-signed (jid1-w3xH9kJhd3KJUp@jetpack) Forecastfox (fix version) 2.3.2 (forecastfox@s3_fix_version)
Having more than one version of a program may cause issues. You must remove the older programs. Then get the current full installer.


Some problems with Flash video playback can be resolved by disabling hardware acceleration in your Flash Player settings. (See this article for more information on using the Flash plugin in Firefox).

To disable hardware acceleration in Flash Player:

  1. Go to this Adobe Flash Player Help page.
  2. Right-click on the Flash Player logo on that page.
  3. Click on Settings in the context menu. The Adobe Flash Player Settings screen will open.
  4. Click on the icon at the bottom-left of the Adobe Flash Player Settings window to open the Display panel.

    The image "fpSettings1.PNG" does not exist.
  5. Remove the check mark from Enable hardware acceleration.
  6. Click Close to close the Adobe Flash Player Settings Window.
  7. Restart Firefox.

This Flash Player Help - Display Settings page has more information on Flash Player hardware acceleration, if you're interested.

Does this solve the problem? Let us know.