Provide a RESET (to Defaults)
Unfortunately, I set my width to something like 2 instead of 200. I can not, now, see my configuration screen because it is just 2 px wide! I have found the cookies but changing or deleting that, does not work, that I know of.
If you hit the key “d” 3 times when your mouse is over the USWR it should delete all prefs.
The main source of configuration is in the localStorage – you can find that as well in your browsers console. But the upper method should be easier.