Rated 3 out of 5 stars

does the add-on block popup like this script in html:
</style>
<script language="JavaScript">
<!-- Begin
function openpage() {
window.open('http://www.example.com','','scrollbars=1,resizable=1,width=1024,height=768').blur();
window.focus();
}
// End -->
</script>

if the anwser is not, just uninstall it and save my time

This review is for a previous version of the add-on (0.1.6). 

Yes, that is exactly what this addon blocks.