It need not be due to no browser, but might also be e.g. a misspelled URL
like <htp://...>, see mail thread starting at
<http://listarchives.libreoffice.org/global/users/msg48090.html>
"[libreoffice-users] LO 5.1 Presentation can't find system browser on OSX
10.11."

Change-Id: I74ce7abb4e78d72ce9bf92424f66608c6780d2d3