Maybe such a thing exists, but I haven't found it. There's next thread and previous thread links, but having reached a post in hybrid mode, to get to the next one has to go back to the thread tree, rescroll it to find where one is up to, then click on the next post. Then, do it again, because people seem to post afresh to the thread rather than replying, even when they are actually replying.
Ideally, there'd be previous in thread, next in thread, and next unread in thread.
The "little blue" go to first unread post icon is really good. ('Course, for me, I loathe white backgrounds, they hurt my eyes, so I invert the window [hooray for desktop effects] and it's kind of brownish.) But for long threads with lots of branches, it only works once.
Ideally, there'd be previous in thread, next in thread, and next unread in thread.
The "little blue" go to first unread post icon is really good. ('Course, for me, I loathe white backgrounds, they hurt my eyes, so I invert the window [hooray for desktop effects] and it's kind of brownish.) But for long threads with lots of branches, it only works once.