Is there a browser extension to show the amount of data downloaded, and to group it by each website?
- Total Data Download 50MB.
- Youtube.com 30MB
- Google.com 20MB
Not a browser extension and not grouping by website, but useful to get overall stats (per day etc.):
Actually there's source code available on the author's site so someone can add new feature but I don't know how difficult it would be to add a feature of grouping by site.
To get the stats, right click in the system tray and choose "Totals".