… is a cookie manager that I have used in the past. This is the only cookie manager I know for Safari. I could not install it in Lion all the time. I guess that's because they've released a non-free version for Lion.
I do not remember if this extension prompts the user when cookies are stored. The features you need are:
- Automatic mode: Keep only cookies / cookies Flash / databases sites that are in your favorites, your favorites, your best sites or your history.
- Save favorite cookies in a whitelist.
By using this last feature, you will accept cookies site by site and not by cookie. This allows you to block large amounts of cookies without wasting too much time managing them.
The developers have released a version for Lion that is not free:
You can download a test on their website.
Also consider the following extensions to block cookies and protect privacy.
- ghosts: Full detection of tracking scripts, img tags and iframes from more than 600 data collection services. Blocking capacity for each detected element.
- Adblock: Hide ads and also prevent the download of some associated cookies. You can include lists that allow you to block more than just ads. For example. EasyPrivacy List, Antisocial List, List of Malware Domains.
- Incognito: Incognito protects your privacy by blocking Google Adsense and Google Analytics on non-Google pages. In addition, you can optionally block Facebook and Twitter content on third-party websites, as well as embedded YouTube movies off the YouTube website. Google also provides other extensions to disable their tracking. However, they are not yet available for Safari. (IBA withdrawal option, keep my withdrawal options)