This add-on is currently at version 0.x, which implies that it is not yet "stable" (meaning how it works and what it does are not yet finalized). You can see updates and changes here -> https://addons.mozilla.org/en-US/firefox/addon/awesome-rss/versions/

The last few releases were on the 22nd, 21st, & 17th.

Are you getting updates more frequently than this?

Thanks. I cannot take credit for Awesome RSS seeming seamless though. I used the icon created by Mozilla and recreated the way Firefox used to handle subscriptions.
It's my hope that Firefox will have this as a page action by default again and that this extension will be completely useless.