Firefox 3 Required
To improve security, feedly now requires firefox 3. Sorry for the inconvenience. Please feel free to contact us on twitter or on get satisfaction if you have any questions.

Is window.postMessage defined?

User Agent Information

Back door
If firefox 3.0 is not available on your OS yet (example Gentoo), we have a created an older build to give you temporary access to some features of feedly until you can upgrade to firefox 3.