Disable third-party cookies in Firefox to stop some types of tracking by advertisers
Third-party cookies are cookies that are set by a website other than the one you are currently on. For example, cnn.com might have a Facebook like button on their site. That like button will set a cookie that can be read by Facebook. That would be considered a third-party cookie.
Some advertisers use these types of cookies to track your visits to the various websites on which they advertise. If you are concerned about this, you can disable third-party cookies in Firefox.
- If you are concerned about tracking by advertisers, see also How do I turn on the Do Not Track feature?.
- Disabling third-party cookies in Firefox can stop some types of tracking by advertisers, but not all.
- Some websites (for instance, Microsoft's Hotmail, MSN, and Windows Live Mail webmail) use third-party cookies for purposes that are not necessarily privacy concerns, and disabling third-party cookies may cause problems with those sites.
Third-party cookie settings are available in the OptionsPreferences window's Privacy panel:
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At the top of the Firefox window, click on the button and then select At the top of the Firefox window, click on the menu and then select On the menu bar, click on the menu and select At the top of the Firefox window, click on the menu and select
.Click the menu button
and choose
-
Select the panel.
- Set Firefox will: to Use custom settings for history.
- Uncheck Accept third-party cookies.
- Click to close the Options windowClick to close the Preferences windowClose the Preferences window .
and choose -
At the top of the Firefox window, click on the button and then select At the top of the Firefox window, click on the menu and then select On the menu bar, click on the menu and select At the top of the Firefox window, click on the menu and select
.Click the menu button
and choose
-
Select the panel.
- Set Firefox will: to Use custom settings for history.
- Uncheck Accept third-party cookies.
- Click to close the Options windowClick to close the Preferences windowClose the Preferences window .
-
At the top of the Firefox window, click on the button and then select At the top of the Firefox window, click on the menu and then select On the menu bar, click on the menu and select At the top of the Firefox window, click on the menu and select
.Click the menu button
and choose
-
Select the panel.
- Set Firefox will: to Use custom settings for history.
- Set Accept third-party cookies to Never.
Note: If after browsing with this setting, you realize you can't view properly some of your favorite websites, an intermediate solution is to set it to From Visited that allow third-party cookies coming from previously visited websites. - Click to close the Options windowClick to close the Preferences windowClose the Preferences window .
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