: **exirename()**
Renames image files based on date/time informations in their exif headers.
-: **fir()**
-Opens given URL with Firefox (Iceweasel on Debian). If there is already an
-instance of firefox running, attaches to the first window found and opens the
-URL in a new tab (this even works across an ssh session).
-
: **freload()**
Reloads an autoloadable shell function (See autoload in zshbuiltins(1)).