This functionality has been available in my hckrnews extension for a while. It works only for individual item pages, since it tracks (in localstorage) the last

This functionality has been available in my hckrnews extension for a while. It works only for individual item pages, since it tracks (in localstorage) the last comment id for each page. It uses a simple left border to highlight new omments, which I think is a little less intrusive (yet easy to spot) than the screenshot for this extension. It's available here: http://hckrnews.com/about.html http://hckrnews.com/about.html