The source of the problem here is the logic that handles situations where panels suddenly appear.  This is typically to handle setup wizards and such, but it also crosses over into the handling of tabbed panes.  The problem appears to be that Orca is getting a number of events each time a tabbed pane appears, and Orca happily speaks the unbound text in the tabbed pane for each of these events.  

I'm not quite sure what to do here.  While I agree that automatic speaking of text in popup dialogs and such is essential, part of me really dislikes the automatic speaking of unbound labels as one moves from page to page.  The information you hear in the profile settings dialogs for gnome-terminal, for example, is quite odd because of this.  I think the real motivation for this is really set up wizards and we probably should script better for those things.

Created attachment 63733 [details] [review]
Patch to remove autoreading of panels that suddenly appear.

This will probably have an adverse effect on the already poor nature of setup wizards, but those probably should be addressed in a different way.

Fixed in the development version. The fix will be available in the next major release (0.2.3). Thank you for your bug report.