@hpoom just sent me a link so I am revisiting, but it doesn't quite seem to be working on pages like this. Either that or this firefox extension1 is not picking it up. Most likely I've done something wrong...
UPDATE: the plugin was confused by the "tooltip" library I was using which removes the titles from elements...
Paul Clarke's blog - I live in Hythe near Folkestone. Married to Clare + dad to 2, I am a full-stack web developr, and I do js / nodejs, some ruby, python, php ect ect. I like pubbing, running, eating, home automation and other diy stuff, history, family tree stuff, TV, squirrels, pirates, lego, + TIME TRAVEL.