This Mozilla support site defines third-party cookies as follows:
I have always been under the impression that third-party cookies were those set by site2.com (the third-party) when you were visiting site1.com.
Can anyone clarify this?
Third-party cookies
-
- BronzeLounger
- Posts: 1598
- Joined: 26 Jan 2010, 20:28
- Location: Ottawa ON
Third-party cookies
Regards,
Paul
The pessimist complains about the wind. The optimist expects it to change. The realist adjusts his sails.
Paul
-
- gamma jay
- Posts: 25455
- Joined: 17 Mar 2010, 17:33
- Location: Cape Town
Re: Third-party cookies
This site seems to have all the facts
Regards,
Rudi
If your absence does not affect them, your presence didn't matter.
Rudi
If your absence does not affect them, your presence didn't matter.
-
- Administrator
- Posts: 78647
- Joined: 16 Jan 2010, 00:14
- Status: Microsoft MVP
- Location: Wageningen, The Netherlands
Re: Third-party cookies
While you are visiting site1.com, it can set cookies for itself and for other sites such as site2.com (if you allow it to). A site such as site2.com cannot set a cookie if you're not visiting it.
Here is an example from HTTP cookie on Wikipedia:
Here is an example from HTTP cookie on Wikipedia:
Suppose a user visits http://www.example1.com" onclick="window.open(this.href);return false;, which sets a cookie with the domain ad.foxytracking.com. When the user later visits http://www.example2.com" onclick="window.open(this.href);return false;, another cookie is set with the domain ad.foxytracking.com. Eventually, both of these cookies will be sent to the advertiser when loading their ads or visiting their website. The advertiser can then use these cookies to build up a browsing history of the user across all the websites this advertiser has footprints on.
Best wishes,
Hans
Hans
-
- BronzeLounger
- Posts: 1598
- Joined: 26 Jan 2010, 20:28
- Location: Ottawa ON
Re: Third-party cookies
Thank you both for clarifying that. From the links you gave, it appears that whatever meager protection Firefox provides by allowing you to reject third-party cookies can be (and is) easily circumvented by the use of such sites as Google Analytics.
Regards,
Paul
The pessimist complains about the wind. The optimist expects it to change. The realist adjusts his sails.
Paul
-
- 2StarLounger
- Posts: 148
- Joined: 26 Dec 2010, 18:17
Re: Third-party cookies
I would think about it a bit differently.
These days, most web pages contain content (text, images, scripts, videos) from multiple web servers. Each request you make to each web server will send and potentially receive cookies for the domain name corresponding to that request. Thus, you may send and receive EileensLounge.com cookies to the lounge server, and Google-Analytics.com cookies to the big hit counter in the cloud, all in the loading of a single page.
(We call the Google cookies third-party cookies in this context because they are not from the site listed in the address bar. When the webmaster visits Google-Analytics.com for a report, then they aren't third party cookies in that context.)
The above description is a little more accurate than saying that EileensLounge.com sets a cookie for Google. The cookies should not cross domains (that would be a security problem).
(I once wrote an article on cookies for the Mozilla support knowledge base. It was deemed too complicated and scary, and has been revised dozens maybe hundreds of times since. Thus, I disclaim responsibility for whatever is currently written there. )
These days, most web pages contain content (text, images, scripts, videos) from multiple web servers. Each request you make to each web server will send and potentially receive cookies for the domain name corresponding to that request. Thus, you may send and receive EileensLounge.com cookies to the lounge server, and Google-Analytics.com cookies to the big hit counter in the cloud, all in the loading of a single page.
(We call the Google cookies third-party cookies in this context because they are not from the site listed in the address bar. When the webmaster visits Google-Analytics.com for a report, then they aren't third party cookies in that context.)
The above description is a little more accurate than saying that EileensLounge.com sets a cookie for Google. The cookies should not cross domains (that would be a security problem).
(I once wrote an article on cookies for the Mozilla support knowledge base. It was deemed too complicated and scary, and has been revised dozens maybe hundreds of times since. Thus, I disclaim responsibility for whatever is currently written there. )
-
- BronzeLounger
- Posts: 1598
- Joined: 26 Jan 2010, 20:28
- Location: Ottawa ON
Re: Third-party cookies
Perhaps they should not have been so hasty to reject your submission!
Regards,
Paul
The pessimist complains about the wind. The optimist expects it to change. The realist adjusts his sails.
Paul