Improving Firefox

As I have mentioned before I am a mac user. I like a lot of things about the mac, but I prefer using Firefox to Safari. The main reason for this is some of the addons I find really useful:

1. No Script (which I use among other things to prevent google tracking my surfing using google analytics or google syndication)
2. Download Status bar
3. PDF Downlod
4. Several web developer plugins

Plus I like the way Firefox can be configured to ask before accepting cookies.

That said there are some things I prefer about Safari. I like being able to accept cookies only for the website I am on. I would like to see Firefox gain this feature. I would like to be able to reject all cookies not from the site I am on, and to then choose whether to accept, reject or accept it until a browser restart.

I would also like something similar for javascript.

Alasdair