Revert "Update preferences.js"
Revert "Update preferences.js"

This reverts commit de5074be1c2356750f890e3167cf20a50a51adeb.

benbasson/jpm,freaktechnik/jpm,benbasson/jpm,mozilla/jpm,Medeah/jpm,freaktechnik/jpm,johannhof/jpm,nikolas/jpm,nikolas/jpm,Medeah/jpm,alexduch/jpm,guyzmuch/jpm,kkapsner/jpm,rpl/jpm,jsantell/jpm,johannhof/jpm,matraska23/jpm,mozilla/jpm,nikolas/jpm,kkapsner/jpm,wagnerand/jpm,matraska23/jpm,guyzmuch/jpm,wagnerand/jpm,matraska23/jpm,guyzmuch/jpm,wagnerand/jpm,alexduch/jpm,jsantell/jpm,mozilla/jpm,mozilla-jetpack/jpm,kkapsner/jpm,rpl/jpm,Medeah/jpm,mozilla-jetpack/jpm,mozilla-jetpack/jpm,alexduch/jpm,johannhof/jpm,rpl/jpm,jsantell/jpm,freaktechnik/jpm,benbasson/jpm