Mike, the current version of https everywhere in git master loads the ruleset libraries three times (!). I think that's possibly because the nsPref:changed Observer [added here](https://gitweb.torproject.org/https-everywhere.git/commitdiff/d5ebd1e1fabaca1de2e2df3c0f6ef3cbb61706d1) is firing during startup, in addition to the on-profile-after-changed event we already had. Note that this is the case even though I did [this](https://gitweb.torproject.org/https-everywhere.git/commitdiff/f895362cd227e764315d0a5f27aaa4e1573b38a6). This is a blocker for the next dev release.