Description of problem:
htmlview-2.0.0-11 seems to use a wrong path to get the default gnome
browser:

GCONF=$(gconftool-2 -g /desktop/gnome/url-handlers/unknown/command \
 2>/dev/null | sed -e 's/%s//')

the right path should be: 

/desktop/gnome/url-handlers/http/command

Version-Release number of selected component (if applicable):
htmlview-2.0.0-11

How reproducible:
always

Steps to Reproduce:
1. set epiphany as default browser using gnome
2. lunch htmlview
  
Actual results:
mozilla is always opened

Expected results:
epiphany should be opened

Additional info:
Replace /desktop/gnome/url-handlers/unknown/command with
/desktop/gnome/url-handlers/http/command.