Rated 4 out of 5 stars

yazan: avada tarih: Tem. 19, 2012 · kalıcı bağlantı

This would be really could if the addon could browse useragentstring.com, to load UA strings from there. Because that site has up to date user agent strings.
Or an autoload a constantly updated xml list would be about as good too. But I don't know of any such lists...