CR-Unblocker by Finn

The CR-Unblocker will get an US Session ID and sets it as your current Session ID cookie. Like this Crunchyroll will think you are located in the US and therefore you should have access to all anime you couldn't watch.

When the page keeps refreshing Crunchyroll has blocked the way this extension works. In that case disable the automatic region switch and wait for an update of this extension.