I have mine turned on and set to check the downloaded list.
As do I.
I have always wondered why anyone would tell google every step they take on the internet by asking them to pass or fail the destination.
I agree whole heartedly, I was more than a little concerned when the option to use google or not was removed from the config, but seeing as the list is downloaded from google no request is sent to them for each page I visit so I am a bit happier.
Anyway I had no problem going to that page from the link at the top of this forum.
Sadly, the link from the banner also fails with the same warning.
Then again I am using Linux which has a different version number.
I am also using linux, and if it helps the build number is Firefox 3 Beta 5 Build 2008032600. If there is a difference it might be that mine is downloaded from the openSuSE build service repos not from mozilla directly. Might be worth me checking that out... The nightly builds also seem to have a whitelist feature in them as well which would help.
@Rigwyn
I had already disabled and enabled this feature to confirm that it was the cause, but I think you might be right about the potential problems with stop badware. Although it seems to rely on a sufficient volume of reports to become triggered the review process seems to be potentially quite slow, especially if your site has not been hacked or subverted in some way.