Rated 4 out of 5 stars

Still no Palemoon support? mozilla continues to make bad UI decisions with every new version, Palemoon is pretty buch Firefox but with a carefully selected feature set for a better user experience. Please Kim, its been long time coming, add support so we can enjoy your work in the more user conscious and friendly Palemoon browser.

This review is for a previous version of the add-on (0.3.4.1-signed.1-signed). 

Palemoon was added in version 0.3.5:

https://addons.mozilla.org/en-US/firefox/addon/yarip/versions/0.3.5

You may have to download it, before installing!?