It would be really nice if somebody could rewrite this as a Greasemonkey script using Desktop Notifications, so that I could use this with Firefox.
In case that last part left you thinking that there's something wrong with me, take a look at this. :)
The Follow Questions and Answers feature is now live across the Network. This allows users to get notifications about any activity on a question when they follow it.
However, this extension does not work properly with the new feature. The extension successfully notifies the user when they have a notification from a followed question, but fails to ...
I'm probably talking to myself here since it appears nobody except me has been on this page in years, but I figured I should mention that (contrary to my previous comment) the add-in still works just fine, and I've been using the Firefox version daily (minutely?!) for months without issue.
If the developer(s) were around, I'd have a couple minor feature ...