Extension breaks go to unread post on ArsTechnica forums

[fuzzmz]

This is a strange and very specific issue, but the extension breaks the go to unread post functionality of the ArsTechnica forums (and I think all phpBB forums, as this is a default functionality, but haven't tested this).

Steps to reproduce:

1. Create account on ArsTechnica
2. Visit a thread on the forums
3. Wait for new posts to be made on that thread
4. Click on the icon to the left of the thread (unread posts)

Observed behavior:

1. With the extension enabled you're not redirected to the first unread message, but dumped to the start of the thread.
2. With the extension disabled or by adding the ArsTechnica forums to the blacklist (http:\/\/arstechnica.com\/civis\/.*) jumping to the first unread message in a thread works as expected.