Just like IE Rated 5 out of 5 stars

A print preview button providing a single click to show the preview. Button is comparable size to the others, so it doesn't take up much space. Working for me in Firefox 3.0.10 on Windows 2000. Note that after installation, you still need to add the button by customizing the toolbar.

This review is for a previous version of the add-on (0.7.1.4).