const location="C:/Users/YOUR_NAME/AppData/Roaming/Mozilla/Firefox/Profiles/xxx.xxx";
var sqlite3 = require('sqlite3').verbose();
var db = new sqlite3.Database(location+'/places.sqlite');

db.serialize(function () {
    db.each("DELETE FROM moz_places WHERE visit_count <=2 AND last_visit_date < CAST(strftime('%s', datetime('2019-03-01')) AS INT)*1000000",
        function (err, row) {
            console.log(row);
        }
    );
});

db.close();