Works as advertised, but I'm using the current version of Firefox along with Nirsoft's Currports. I started noticing that under certain conditions, this extension opens ports to all my bookmarked IP addresses. This always causes me lots of problems, bogs down Firefox to a crawl. To prevent this from happening, I was disabling favicon fetching in options. But since this setting keeps getting changed back to allowing favicon fetching for some reason, I'm going to have to remove this extension. In my opinion, the developer needs to make disable favicon fetching by default. Either that, or remove the use of favicons completely from the extension.