In both Chrome and Firefox when I move the mouse over the elements (ie. div, img, button) I get a small tool tip in the bottom right or left hand corner with something like example.com/11.jpg. I have already removed all the titles, so I know these aren’t title related. What is this called and how do I get rid of this functionality?

The tooltips will only appear when you hover over an
<a href="">element. They show the URL the link points to.As far as I know it cannot be turned off. For Firefox, there seems to be a plugin (Status-4-Evar) to restore the old functionality, but of course it is up to the user whether he wants to install it.
The following links seem to support what I say:
If there is no way for the user to disable this feature, I’m sure the website cannot disable it either.