Hey there,
i have the same problem here. Just migrated from one Macbook Pro to another. Now the extension in Safari wold not work anymore on the new Macbook. In Chrome and firefox it connects correctly to the Enpass App. Reinstalling of app and extension did not help.
Both Macbooks are on High Sierra, but the older one was updated a few weeks ago from sierra to High Sierra with Enpass already installed. Irritating on the Mac i migrated from, there it still works fine. But on my new Macbook Pro where I migrated to (though a used 2015 Model which ist the same as the old one) it does not work.
Also German here if that is the cause of the problem?
Macbook Pro Retina 13 inch early 2015 with macOS 10.13.2 + Safari 11.0.2
