[guiambros]

I was having the same problem, so I just fixed it, and sent a pull request to the original author. In the meantime, if you don't want to wait for the author, you can just use the temporary extension I published:

https://github.com/guiambros/HNMarkAllRead

https://chrome.google.com/webstore/detail/hacker-news-mark-a...

[SebKba]

I didn't even notice this. It works great and makes me a very happy camper :)