I have been using Cookie Monster in Firefox for a while now to great satisfaction. However, I haven't found a way to allow cookies like Google's on Google's services but block them when I visit other sites that integrate with Google (or Facebook etc.)

  • 2
    This is probably a question for superuser. Commented Dec 13, 2012 at 18:30
  • 4
    Any problems with unchecking the obvious "Accept third party cookies" option in FF? Commented Dec 13, 2012 at 19:26
  • That requires the "Accept cookies" option to be enabled which defaults Cooke Monster to accept cookies on all sites.
    – henine
    Commented Dec 14, 2012 at 8:28
  • This question would be a great question if it weren't tied to Cookie Monster. However, the question about how to block third-party cookies while using Cookie Monster is somehow much less interesting, and better directed to the developers of Cookie Monster to ask them why they broke Firefox's existing option to block third-party cookies. Therefore, I propose that we edit the question to the form that is actually of interest, namely, how to block third-party cookies in general (not focused on Cookie Monster). Any opinions on this proposal?
    – D.W.
    Commented Dec 21, 2012 at 4:30

1 Answer 1


Safari blocks third-party cookies by default. If you want to check your settings, click the gear icon and go to Preferences >> Security; under "Accept cookies", it should say "Only from sites I visit". Click OK.

Firefox (without Cookie Monster) blocks third-party cookies if you untick the checkbox saying "Accept third party cookies". You can get there from Options >> Options >> Privacy.

The RequestPolicy extension for Firefox can be configured to block those third-party requests (including cookies, but also the requests themselves).

Internet Explorer allows you to block third-party cookies. Go to Tools >> Internet Options >> Privacy >> Advanced. Tick the box labelled "Override automatic cookie handling". Next to "Third-party cookies", select "Block". Then click OK.

Opera allows you to block third-party cookies. Go to Tools >> Preferences >> Advanced, select "Cookies" on the left, then select "Accept only cookies from the site I visit". Click OK.

Chrome allows you to block third-party cookies. Go to the wrench icon >> Options >> Under the Bonnet >> Content Settings >> Cookies, and tick the box labelled "Block all third-party cookies without exception". Click OK.

  • Safari only blocks some third-party cookies, AFAIK they have a white-list of some allowed third-party cookies. Nowadays, they have a new approach for dealing with cookies called ITP.
    – Flimm
    Commented Oct 8, 2018 at 12:13

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .