 Hang on a minute. I have installed the extension. It doesn't seem to be working though. Um, I'm sure it worked on my machine. Well, let's debug it together and find out what went wrong. First, let's load the source code into Chrome. I'll head to chrome colon slash slash extensions, enable developer mode in the top right and choose load extension. I'll find the folder with my code and load it in. Ah, I can see there's an error already. I can click to view the errors here on the extensions page or click service worker to inspect my background context and see exactly what's happening in the console. This looks like a typo and an easy fix. I just need to make sure the method I'm calling actually exists. Uh huh, that's how you debug an extension.