The latest version of Opera --version 7.5, supports newsfeeds in RSS format. The free download is the first version of the Opera Web browser to offer easy RSS viewing.
Setting up is easy. You go to the "Mail" tab and then "Newsfeeds" to choose or create the newsfeeds you want to monitor. Once you have the feeds you want, you only have to go to your mail tab and then choose which newsfeeds you want to read. You can set it up to refresh the feeds however you want --the default is every hour.
Opera is a fast, flexible browser that now includes newsfeeds in it's free version. The pay version is $39. The free version is the same, but with small ads displayed.
Opera does not support Atom feeds.