Options request and a small bug found Rated 4 out of 5 stars

I would appreciate an option to change the interval of checking new unread articles. And is it possible to show unread feed names on hover? Otherwise 4+ stars.EDIT: I found a small bug. When there's a space placed in the toolbar on the right side of addon icon, after FF starts, the position of icon and space is switched.

This review is for a previous version of the add-on (1.0.1.1-signed.1-signed).