Are you a Stumbleupon user?!?

I think you’ll like this post

Some days ago, I was watching Stumbleupon’s toolbar for Firefox3 and I’ve noticed an interesting feature.

Now it’s possible to export and backup our own bookmarks & tags to a Firefox bookmark folder.
As you can see in this screenshot, you can choose if exclude (or not) mature content
[hide it to your mum ]

I think that this new feature is great!
what do you think about? I’m interested to your opinion!