Rated 5 out of 5 stars

also possible with js bookmarks without addon
+1:

javascript:(function(){%20var%20e,s;%20IB=1;%20function%20isDigit(c)%20{%20return%20("0"%20=0;%20--s)%20if%20(!isDigit(L.charAt(s)))%20break;%20break;%20}%20++s;%20if%20(e

This review is for a previous version of the add-on (3.0.1.2).