To provide feedback for the beta you should use the Feedback button on the toolbar.

Checking if you are running Direct2D

Look in 'about:support'. At or near the bottom, you will see an item that tells you whether Direct2D is enabled.

Using Direct2D if it is not turned on for you

By default, Direct2D and DirectWrite are turned on for DirectX 10 hardware. If you want to try to force it on (check about:support to see if it worked), follow these steps:

1. Enter 'about:config'
2. Click through the warning, if necessary
3. Enter render in the 'Filter' box
4. Double-click on 'gfx.font_rendering.directwrite.enabled' to set it to true
5. Double-click on 'mozilla.widget.render-mode' and change its value to 6
6. Restart the browser

Special note: If you disable DirectWrite using this method, Direct2D will also be turned off.

Turning off Direct2D

If you suspect Direct2D has caused a bug, you can check by turning off Direct2D:

1. Enter 'about:config'
2. Click through the warning, if necessary
3. Enter render in the 'Filter' box
4. Double-click on 'mozilla.widget.render-mode' and change its value to 0
5. Restart the browser

To revert to the default behaviour, change 'mozilla.widget.render-mode' to -1.