Yandex.Bar provides an advanced toolbar for Firefox, which enables users to search over yandex.ru.The Yandex.Bar extension is an advanced toolbar for Firefox, which enables users to search over yandex.ru services, getting information and notification about unread mail messages (Yandex.Mail) and feeds (Yandex.Lenta), getting information about money (Yandex.Money) and weather (Yandex.Weather), adding bookmarks to the Yandex.Zakladki.Requirements: