Rated 5 out of 5 stars

as other users already mentioned, this extension is "almost" perfect; all it needs to reach the ultimate perfection are customizable options for the hotkeys/mouse combinations and a drop down menu on the reload button to choose which kind of reload we want to do

This review is for a previous version of the add-on (1.0). 

Key customization is now available as of version 3.0.0, and R+ now displays a complete list of shortcuts when you hover your mouse over Firefox's "Reload" button. Hope you'll consider upping your rating!