To check your DataFox version, go to Tools > Add-ons > Extensions and then search for DataFox, the version number should appear right next to the name. You probably have version 0.8, since version 0.85b (look at earlier threads or the DF site for instructions on how to get this beta version) you can choose MB or GB from the preference page.Regarding left over bandwidth, you can do this in version 0.85b, but it's a bit of a hack; the next version (coming very soon) will have better support for this - it will even tell you how much bandwidth you have left for the day (if you intend to use your account at a regular pace throughout the month).Glad you like DataFox - I'll try to do an Opera widget, but seriously don't have the time for it now. Anyone else interested in taking this up? Core DataFox JS code is reusable (and I can help here) , you'd probably only have to work on the front-end.Brian