1. Open Mozilla Firefox.
2. In the top right corner of your browser, click the 'Menu' button.
3. Choose 'Options'.


4. Select the General panel.
5. Under Performance, uncheck Use recommended performance settings.
Additional settings will be displayed.



6. To enable, tick the checkbox beside 'Use hardware acceleration when available'.
7. To disable, make sure the checkbox beside 'Use hardware acceleration when available' is unchecked.
8. Restart Mozilla Firefox.