I give 4 stars but there is a glaring issue at work.
I have numerous computers and vm's that run NoScript. With Firefox sync enabled, they all keep completely losing their settings. This causes me to have to check off every single site over and over. I've tried the export/import, but that should not be necessary every time I enter a device that hasn't been used in a while. I don't know if this is a Firefox or NoScript issue, so I did not ding NoScript for that major issue.