Rated 5 out of 5 stars
I love faviconize. The new behavioiur in Fx6 annoys me too, but don't blame the developer. The reason it's doing this is the following bugfix: https://bugzilla.mozilla.org/show_bug.cgi?id=465086. If they ever implement https://bugzilla.mozilla.org/show_bug.cgi?id=667607, everything will go back to normal. So go to that request and vote for it!!! FYI, apparently TabUtils has a way to disable this behaviour.This review is for a previous version of the add-on (1.0.5). This user has a previous review of this add-on.
I fixed this issue few days ago, but still in review.
You can install "un-reviewd-version" from following page.