Userscripts.org

Because you use GM_setValue without checking if it already has a setting, I can't set preferences for Simplepedia from about:config (which would be useful because I wouldn't have to edit the script everytime I get the latest version. I suggest something like this:

if (typeof GM_getValue('user') !== 'boolean') {
    // actual boolean value makes more sense to me
    GM_setValue('user', false);
}