Mozilla Connect

I just tried posting on connect.mozilla.org for the first time - I think it is great I can log in with other providers there, having to have a "Firefox" account irritates me to no end.Except, writing a post here is PAINFUL - you write in "rich text" ...

I am looking for a "split view" extension in Firefox, which would allow me to divide the Firefox window in two horizontal parts/panes, and show one tab's content in left pane, and other tab's content in right pane. So, I found How can I view two tabs...