upgrade from Firefox 3.0 to Firefox 3.5

[perryh at pluto.rain.com]

> > So . . . how do I upgrade Firefox from 3.0 to 3.5 without
> > running the risk of losing everything (bookmarks, a 100-tab
> > session, et cetera)?
>
> Well, I don't think those settings get altered in any way -
> they do not reside in the port's directories (where it will
> be installed into).  To be sure, make a backup copy of your
> ~/.mozilla/ directory before.

I suspect the real concern is not that the upgrade itself will
wreck something, but that the upgraded FF may do something odd
the first time it is fired up :(

One hopes that backing up ~/.mozilla would cover it.