I don't actually use the feedly browser extension, it mucks my pages up. I use normal web page feed links, and Firefox (the first time) will ask where you want

I don't actually use the feedly browser extension, it mucks my pages up. I use normal web page feed links, and Firefox (the first time) will ask where you want to direct that rss feed, and if you have feedly open in a tab it proposes feedly as an option, and you can set it as the default so links always go to feedly. No extension required.