Features I will need to make a permanent switch (Score 1)

It's been awhile since I've tried Opera but I'm very impressed with it. I love the small tabs that minimise screen real estate, the seamlessly integrated pop3 email, the personal toolbar, incredible speed, etc. I would make a permanent switch to Opera if they had features equivalent to these firefox extensions:
Hit-a-hint Noscript Bugmenot Downthemall