Clicking on the "points of failure" chart will open the editor to that location.
If you have the osu! editor open, clicking on the "Points of Failure" chart on a beatmap page will move the editor to around that location.
Note that this script cannot open the osu! editor for you (limitation of osu:// links, I believe). You must already have the correct map open in the editor.
Tested in Firefox w/ Violentmonkey. Greasemonkey and chrome should probably work.