Don't create global variables in prefs file (feedstore, settings and widget2 in prefs.js). They won't get garbage collected after window close.

Ok, so i have to change the whole structure of the prefs I send you an other zip JP

Not the structure, just make them local in `buildPrefsWidget` and then pass them to the functions needing those.

these function don't need the value they need the referance to those variables not sure javascript pass the pointer. I will make a class. JP