Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Third party cookies are blocked, why do I have them even after deletion??

  • 1 balasan
  • 5 ada masalah ini
  • 9 paparan
  • Balasan terakhir oleh Vivek

more options

I have third party cookies blocked. It stays blocked, that is not the problem. However when I view cookies there are a huge number of third party ones on the list..from sites such as 2o7.net, ad.yieldmanager.com, and 33across.com. I delete all cookies, and then go look again and they are all back. There must be 50 of them. I have blocked all cookies and deleted them, and immediately they are back. WHY? How can I get rid of these for good, what puts them back and where are they hiding? I have restarted firefox, restarted my computer, etc.etc. Please advise. I don't want crapvertising cookies on my system!!

I have third party cookies blocked. It stays blocked, that is not the problem. However when I view cookies there are a huge number of third party ones on the list..from sites such as 2o7.net, ad.yieldmanager.com, and 33across.com. I delete all cookies, and then go look again and they are all back. There must be 50 of them. I have blocked all cookies and deleted them, and immediately they are back. WHY? How can I get rid of these for good, what puts them back and where are they hiding? I have restarted firefox, restarted my computer, etc.etc. Please advise. I don't want crapvertising cookies on my system!!

All Replies (1)

more options

Hi,

Please check if this happens in Safe Mode. These could be opt-out cookies set by an add-on and if so, could actually be useful. You can check the installed add-ons via Tools (Alt + T) > Add-ons > Extensions (on the left).