I really like Firefox but the big annoying part that I run into is that Sync seems to blow away extension-specific settings whenever I install Firefox on a new

I really like Firefox but the big annoying part that I run into is that Sync seems to blow away extension-specific settings whenever I install Firefox on a new machine. Like, the new machine doesn't have any of my settings for the extensions it knows I already have installed on a different machine, and then Sync happily syncs the new settings to the other machines, blowing it away there too. Thanks, Sync. I'm a big fan of NoScript and RequestPolicy, but having to "redo" all the whitelisting is a major PITA. Does anybody else run into this? Am I missing a setting or is there a file I can manually sync (or just backup and restore) to ensure I don't need to endure this pain again?