Formerly did what it says Rated 5 out of 5 stars

Also doesn't work for me using FF 6.0.2 + FB 1.8.3.Now, that there are new APIs available (https://bugzilla.mozilla.org/show_bug.cgi?id=467669), it should be much easier to get that info.Though note, that there's already an issue integrate this feature into Firebug: http://code.google.com/p/fbug/issues/detail?id=2495, which will probably make this extension obsolete as soon as it is implemented.Since this little extension previously did exactly what the short description says, I keep the rating up. Though it should be updated soon.

This review is for a previous version of the add-on (0.1.1).