I can confirm it on a Ubuntu 8.10 x86_64 running epiphany-webkit.
Firefox and epiphany-gecko is working well
(Mozilla/5.0 (X11; U; Linux x86_64; pt-br) AppleWebKit/525.1+ (KHTML, like Gecko, Safari/525.1+) epiphany-browser )
I can confirm it on a Ubuntu 8.10 x86_64 running epiphany-webkit.
Firefox and epiphany-gecko is working well
(Mozilla/5.0 (X11; U; Linux x86_64; pt-br) AppleWebKit/525.1+ (KHTML, like Gecko, Safari/525.1+) epiphany-browser )