Verbatim ")" or "," in the URL will apparently cause problems when Mozilla-
derived browsers parse the openURL(...) command (see
<http://www-archive.mozilla.org/unix/remote.html> "remote control of unix
mozilla"), so percent-escape all "(", ")", and "," in the URL.  Also, remove the
space before "new-window" as "Commands should /not/ have spaces in them" (see
link above).

Change-Id: I4b0f3f6a19c94ed9346bb6c55e77d6eae82baba2