It might be interesting to see if you run into the same discrepancies and problems if you set them both back to the system defaults.

Not a bad thought. I installed it with just the defaults on another computer, and I had the same problem with opening a lot of links too quickly. Not sure about the other problem, since it only happened that one time anyway. Couldn't find a solution in their forums, may be ime to post there.

Just discovered the "duplicate tab" extension. Copy the current tab AND the history. Comes in handy when I am typing a reply in here, and I want to go back and check out an older post in the thread real fast without losing my message (or having to copy it and repaste it later.) Very nice.