Excellent, but needs a feature. Rated 5 out of 5 stars

Excellent, but I wouldn't mind a way to ADD/REMOVE to the drop down box. I don't use 4 out of the 6 shown. I wouldn't mind being able to get rid of those, and put in my own times. YES i know there's the custom setting, but with 10 tabs open, some refreshing at different intervals, just would be nice to have it on a one click.
This would also make the list longer so that as many times as you wanted to set were displayed

This review is for a previous version of the add-on (3.0.0).