Can someone help me with this Safari plug-in script?

The script is here.

I don’t even know how to download it in a sensible format.

It’s a way for the Myfitnesspal app to be more useful for carb counting. I want to use it for diabetes management; ketoacidosis is not high on my list of things to do, despite the name of the plug-in.

Go to the link, look on the right side, and click the Download ZIP button.
A folder will appear in your downloads - open it, and click on the “MyFitnessPalForKeto.safariextz” file, and it should load it into Safari.

I haven’t done it, so I don’t know if there is any more required than that.

Ok, here goes nuttin’…

This is what I got.
Now what?


Are you trying to do this on an iPad?


That plug-in is for Safari on a Mac.