If you are running any plugins in your browsers then you may need to disable some of them or whitelist the site to make Photobucket work. In the past, I have been unable to use Photobucket with Chrome unless I disable the majority of privacy and script blockers. However, even then, they have some serious problems with their website currently. I just loaded Photobucket in a clean Safari (no extensions installed at all) and Photobucket caused thousands of javascript errors (mismatched origin/cross domain security problems from content from 3rd party domains). Therefore, Safari and Chrome are actually doing you a favor by now allowing Photobucket to do some really insecure things behind the scenes related to it's advertising partners and social network partners. These are the kind of things that can expose you to a drive-by infection on a Windows PC.