File browser.patch of Package xchat
Index: src/fe-gtk/fe-gtk.c =================================================================== --- src/fe-gtk/fe-gtk.c.orig +++ src/fe-gtk/fe-gtk.c @@ -958,7 +958,7 @@ fe_open_url_inner (const char *url) return; /* fresh out of ideas... */ - try_browser ("mozilla", NULL, url); + try_browser ("firefox", NULL, url); #endif }