Network.cookie.cookieBehavior

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Background

This preference controls how the browser allows cookies.

Possible values and their effects

0

All cookies are allowed. (Default)

1

Only cookies from the originating server are allowed.

2

No cookies are allowed.

3

Third-party cookies are allowed only if that site has stored cookies already from a previous visit (Firefox 22.0 and SeaMonkey 2.19 and later) (obsolete) Cookies are allowed based on the cookie P3P policy

UI

Firefox 3.0 and above

Tools -> Options -> Privacy / Cookies

  • "Accept cookies from sites"
    • Accept third-party cookies

Note: Unchecking "Accept third-party cookies" will allow cookies from the originating server only.

Firefox 2.0

Tools -> Options -> Privacy / Cookies

  • "Accept cookies from sites"

Note: The option to only allow cookies from the originating server was removed from the UI in Firefox 2.

Firefox 1.5

Tools -> Options -> Privacy -> Cookies

  • "Allow sites to accept cookies"
    • "for the originating site only"

SeaMonkey

Edit -> Preferences -> Privacy & Security -> Cookies / Cookie Acceptance Policy

  • Block cookies
  • Allow cookies for the originating web site only (no third-party cookies)
  • Allow third-party cookies for previously visited websites only (SM 2.19 and later)
  • Allow all cookies

Mozilla Suite

Edit -> Preferences -> Privacy & Security -> Cookies / Cookie Acceptance Policy

  • Allow all cookies
  • Allow cookies for the originating web site only
  • Block cookies
  • Allow cookies based on privacy settings

Caveats

  • Disabling cookies will break many sites that require you to log in.

First checked in

2003-06-14 by Daniel Witte

Has an effect in

  • Netscape (all versions since 7.2)
  • Mozilla Suite (all versions since 1.5)
  • Phoenix (all versions)
  • Mozilla Firebird (all versions)
  • Mozilla Firefox (all versions)
  • SeaMonkey (all versions)

Related bugs

Related preferences

See also