Let us continue this discussion in chat.

@suomynonA: Oh, I mean the site list (the ones the script will actually run through) in the second section of the settings dialog, not the include rules.

@suomynonA: Try updating, and if it doesn't work let me know what sites you have specifically in settings, and whether you're using the single-tab-forcing.

@suomynonA: Are you getting any errors in the console? What sites are listed in the settings?

@Glorfindel: Oh, great! Thanks for the debug work on that, which saved me some more digging; that's recently added code, which explains the problem.

@Glorfindel: That appears to be a backoff on that host's side; should clear up in time, but might be caused by an outdated and over-eager updater? (Probably not directly related to the main problem, though.) I've uploaded a copy that should let it work for now, though.

@Glorfindel: That's very puzzling. Mind trying a debug build with alerts?

@Glorfindel: OK, do you get any errors in the console when loading other sites?

@Glorfindel: Hmm. Can you check what sites it reports in its site list by opening the Options dialog on the one site you do have access to?

@Glorfindel: There seems to have been a bit of a glitch there; it should be on 1.8.32, not 1.8.30, so try that?

@Glorfindel: Oh, thanks for letting me know. Think the fix is out, and I'll work on SSL shortly. (Irritating StartSSL problems.)

@suomynonA: New option to suppress any new tabs (except recycling the pinned tab, of course).