Firefox 3.5 all okay here. Are you running plugins/add-ons that may be interfering?
And tested at work---
Fx 3.x = okay
Fx 2.x = okay
IE7 = okay
IE8 = okay
I thought of that, but I only run some very basic plugins that have never been a problem before 3.5 (AdBlock Plus, Fire.FM, GooglePreview and the Java Quick Starter). The only one that I could possibly see causing this would be ABP, but a lot of people use that, so I would think if it were the cause, my issue would be more widespreaad.
This whole issue is really odd. It is obviously connected to my browser history in some way, but it seems to only be the recent history. When I clear my history to fix the issue, I only have to clear the previous hours worth of history... hmmm... perhaps it is not something about the GOG site that causes this, but rather the site I visited before I came to GOG... I'm going to have to pay attention to that next time it happens.