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.

Avatar for Username

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

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

How do I prevent my cookie exception list from being programmatically amended?

  • 3 respostas
  • 3 have this problem
  • 1 view
  • Last reply by cor-el

Nemo564
Nemo564
more options

I have Firefox set to never accept cookies, and I have an Exception list that specifically allows cookies from sites of my choice. Trouble is, this exception list is somehow being expanded with sites that I haven't included, and in some cases, sites that I've specifically blocked. For example, I have explicitly blocked cookies from Google. Yet, when I check the list, I find both the rule I entered blocking Google, and a new rule that I didn't enter specifying that Google may drop cookies for First Party Only.

Question: Who (besides me, the user) is allowed to expand the Exception list, and why? Seems to me this makes the promise of the list nearly worthless.

I'm running Firefox 33.1.1.

I have Firefox set to never accept cookies, and I have an Exception list that specifically allows cookies from sites of my choice. Trouble is, this exception list is somehow being expanded with sites that I haven't included, and in some cases, sites that I've specifically blocked. For example, I have explicitly blocked cookies from Google. Yet, when I check the list, I find both the rule I entered blocking Google, and a new rule that I didn't enter specifying that Google may drop cookies for First Party Only. Question: Who (besides me, the user) is allowed to expand the Exception list, and why? Seems to me this makes the promise of the list nearly worthless. I'm running Firefox 33.1.1.

Chosen solution

You're welcome

Ler a resposta no contexto 👍 0

All Replies (3)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

That is likely done by one of your extensions (? DoNotTrackMe).

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window
Nemo564
Nemo564 Question owner
more options

Yes. It was an extension, though not DoNotTrackMe. I couldn't quite make Safe Mode work reliably, so I worked my way down my list of extensions, selectively deactivating them one by one, until I found the culprit. Thanks for the lightning-quick response!

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Chosen Solution

You're welcome