How do I subscribe to an RSS feed in Mavericks?

I would like to subscribe to some RSS feeds. I originally had them in Mail, which worked just fine. But after upgrading to Mavericks, the RSS feeds disappeared, and I get this message when I click on an RSS feed link:

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How do I subscribe to an RSS feed, if this won't work?


An option you might look into is Feedly. They have a Safari plugin (and probably other browsers) and work well enough.