Me neither. I don't know anything about chrome extensions, but I was able to edit it to show an alert(), and append a div to the body tag, so it is running. But

Me neither. I don't know anything about chrome extensions, but I was able to edit it to show an alert(), and append a div to the body tag, so it is running. But it doesn't appear to modify the page in any way I can see. Seems to be that when you have no hide options stored, the request listener returns {} and the main.js code blows up on "options = JSON.parse(response);" - (at least it doesnt seem to make it past that line). This fixes things for me: try { options = JSON.parse(response); } catch(err) { }