Comment 3 for bug 793788

I still don't think automatically switching tabs is the best approach. Some things that I would add to help with this issue include:
  * Having the tab actually flash when a new slide/URL is shown. Flashing tends to attract a bit more attention.
  * Utilize the status bar more to show that "Presentation has changed to slide #5" or "Now showing http://ubuntu.com/".
  * Have a preference/setting to allow the user to tell Lernid to automatically switch tabs. This allows the user to choose the behavior that they prefer.
  * Have the presentation always displayed (when there is one), regardless of what tab is displayed. The presentation is fairly small in size, so users who are working in the terminal should still have plenty of room. This doesn't help with the URL switching, but I think that is a bit less important than slide switching for Lernid.

Any combination of these ideas should make it easier to detect new slides/URLs.