my $cookie_jar = HTTP::Cookies::MozRepl->new();

my $user_agent_name='Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:39.0) Gecko/20100101 Firefox/39.0';
my $agent = WWW::Mechanize->new(
	agent=>$user_agent_name,
	cookie_jar => $cookie_jar,
	autocheck => 1);