How do I Turn Off hardware acceleration?

To turn off hardware acceleration in Firefox: Click the menu button and choose Options.Preferences. Select the panel and the tab. Uncheck Use hardware acceleration when available. Click the menu button and then click ExitQuit . Click the Firefox menu , then click .
For More Information Please Refer:
https://support.mozilla.org/en-US/kb/hardware-acceleration-and-windowblinds-crash
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