Firefox & Chrome Addon "Feedly Open All Unread"
Adds a button to feedly.com to open all unread articles in new tabs
Downloads
Firefox
https://addons.mozilla.org/de/firefox/addon/feedly-open-all-unread/
Chrome
https://chrome.google.com/webstore/detail/feedly-open-all-unread/blmhlkddebpmcjihpgbnhiinjfibekkf