I was relying on hckr news extension (https://chrome.google.com/webstore/detail/hckr-news/mnlaodleonmmfkdhfofamacceeikgecp) to get a highlight of the new posts in a thread but it has recently stopped working.
I don't know why since there wasn't an update to the extension and HN doesn't seem to change.Is there another extension that is doing this?