The extension allows to set sound notifications on the wanted rate of any currency!
There are all current data about all currencies (buy, sell, volume) in the popup window.
The information is taken from exchange sites directly.
Now if you hover the icon there is all currency pair info (buy,sell,volume).
We accept donations in BTC-e codes for the development (my username on BTC-e is "arvitaly" )
Your reviews and proposals are welcome.
The group about the extension is https://groups.google.com/forum/#!forum/btcemonitor
Extension security
https://groups.google.com/forum/#!topic/btcemonitor/IJunjvdCjfQ
http://i.pixs.ru/storage/1/8/0/cs413323vk_5966080_10217180.jpg
http://i7.pixs.ru/storage/1/6/5/cs413323vk_9762834_10217165.jpg