Not sure if it's OpenBSD related but I'm using urlview v0.9 with mutt
v1.5.12 and firefox v2.0.0.3 on OpenBSD 4.1. My window manager is
wmii.

I just put the following line in my /home/me/.urlview and nothing in
.muttrc or anywhere else. When I go to mutt and press CTRL-b, it shows
the url list and when I click one of the URLs, it opens up firefox and
nothing else happens. Firefox just sits there instead of loading the
URL.

Any help would be much appreciated. Thanks.

.urlview output -

REGEXP ((http|https|ftp|gopher):(//)?[^ <>"\t]*|www\.[-a-z0-9.]+)[^ .,;\t<">\):]
COMMAND /usr/bin/nohup firefox -remote "openURL("%s", new-tab)"
quoted text
>/dev/null 2>&1 &