>>> If anyone knows of a better way to get the pages added as a true
>>> sidebar, rather than as a bookmark-that-may-be-opened-in-the-sidebar,
>>> please let me know.
> 
> 
> Here: http://v2studio.com/k/moz/rubysidebar.xpi

actually, the server admin is lazy to set a proper mime type, so try 
this link for a direct install:

http://v2studio.com/k/moz/serve.asp?file=rubysidebar.xpi

> 
> It may be overkill to write an extension to do it, but it was the only 
> way I found.
> 
> Perhaps in the future I could implement a local copy to use when offline.
>