Thank you! If I haven't read any of the comments on a post, there is no need to show me that they are new. The entire thread is new, I know that. In essence, t

Thank you! If I haven't read any of the comments on a post, there is no need to show me that they are new. The entire thread is new, I know that. In essence, the extension gives comments two states: new or old. I perceive that there are three states: new, old, and new-since-last-viewed. I am only interested in special highlighting for the third state, new for threads I have visited before.