This doesn't appear to work at all. Every single page I visit is apparently Andrew Napolitano, and far right! Even the Morning Star (well-known far-left newspaper). Or Google.

This add-on says: every website is Fox News; every website is right-leaning, and I can't even "click to read more info". So, Reuters, YouTube, Github, Steam. They're all Fox News, according to this addon. I don't think it's entirely accurate, wondering if due to lack of updates which is a shame.

Thanks for this. I've been looking for a Firefox version of an AllSides addon-on.

Simple, yet effective.