Nice addon Rated 4 out of 5 stars
I think this is a great addon, especially when looking at online documents (like IETF RFCs). I'd like to echo the other user requests, though - the expansion of the doc contents in the bar on the left should be controllable. You should be able to right-click and select a level of detail (or at the very least, say expand all or collapse all). it's quite bothersome to have to manually collapse 25 sections every time I come back to the same page.