browse-url-at-mouse is an interactive autoloaded compiled Lisp function in `browse-url.el'.

(browse-url-at-mouse EVENT)

Ask a WWW browser to load a URL clicked with the mouse.
The URL is the one around or before the position of the mouse click
but point is not changed. Doesn't let you edit the URL like
`browse-url'. Variable `browse-url-browser-function' says which browser
to use.