Rated 4 out of 5 stars

Ok, sorry about that last review, it apparently does work correctly provided you go into Tools > Clear Recent History and select all the things that you want cleared with this addon. Whether it "securely" deletes them is as yet unknown to me. The 3-pass DOD algorithm is older but unless you're a spy should be good enough for pretty much everything.

This review is for a previous version of the add-on (0.3.2.1-signed).  This user has other reviews of this add-on.