Keep custom rulesets on upgrade
When upgrading the browser and/or the plugin, the custom rulesets are silently removed.
As proof of concept for my own use, I made a custom ruleset for kernel.org. It got removed when I upgraded from FF-4.0.0 to FF-4.0.1 and/or when I upgraded the HTTPS Everywhere addon to 0.9.6.
Trac:
Username: ymorin