The extension seems to not find existing Facebook profile pages, etc., because the extension has no access to an available Facebook account. Many Facebook pages aren't visible from the Web if you're not logged in to Facebook. Are there any chances that the RottenLinks extension can handle this issue better than just listing these URLs as "Not found"?
Topic on Extension talk:RottenLinks
Hey,
I’ve mentioned this to our team for you.
- RhinosF1
Hi,
We believe this is due to the response code that Facebook returns. You would have to raise this with them but we are considering an optional blacklist to mitigate this.
- RhinosF1
We have just updated the extension to allow this.