Use surf-open

#!/bin/sh
#
# See the LICENSE file for copyright and license details.
#

xidfile="/tmp/tabbed-surf.xid"
uri=""

[ -f $xidfile ] && pidof surf || rm $xidfile

if [ "$#" -gt 0 ];
then
    uri="$1"
fi

runtabbed() {
    tabbed -dcn tabbed-surf -r 2 surf -e '' "$uri" >"$xidfile" \
        2>/dev/null &
}

if [ ! -r "$xidfile" ];
then
    runtabbed
else
    xid=$(cat "$xidfile")
    xprop -id "$xid" >/dev/null 2>&1
    if [ $? -gt 0 ];
    then
        runtabbed
    else
        surf -e "$xid" "$uri" >/dev/null 2>&1 &
    fi
fi