Thanks a lot, Stephan. Buzz buttons are delivered through a script
that, I think, generates their content box. Since Disconnect blocks
the script, dimensions are never specified, and there's no area to
highlight.
> I check "depersonalize searches" and the buzz icon appears. Both times the
> extension tells me it blocked some sites.
This behavior is by design. When you turn search depersonalization on,
Disconnect gets rid of your generic google.com cookies. You're not
personally identifiable anymore without the cookies, so the extension
also starts unblocking resources from google.com -- like Buzz buttons.