Privacy.donottrackheader.value: Difference between revisions
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[http://hg.mozilla.org/mozilla-central/rev/ | [http://hg.mozilla.org/mozilla-central/rev/a26f703d6be8 2013-01-28 by Sid Stamm] | ||
==Has an effect in== | ==Has an effect in== | ||
Revision as of 21:28, 12 March 2013
Background
The “Do Not Track” settings allow to communicate a user's tracking preferences to websites. User tracking is a term that includes many different methods that websites, advertisers, and others use to learn about the user's web browsing behavior. This includes information about what sites are visited along with preferences stated and purchases made. Such sites often use this information to show ads, products, or services specifically targeted to the user [1]. See External links below for further reading.
Possible values and their effects
0
A header stating consent to being tracked is sent to all websites if privacy.donottrackheader.enabled is set True.
1
A header stating the request not to be tracked is sent to all websites if privacy.donottrackheader.enabled is set True. (Default)
Caveats
- This preference does not have any effect if privacy.donottrackheader.enabled is False.
- Websites are not obligated to honor the request.
UI
Mozilla Firefox
This setting is located in Tools → Options → Privacy:
- The value is 1 when “Tell sites that I do not want to be tracked” is selected.
- The value is 0 when “Tell sites that I want to be tracked” is selected.
- It can be either when “Do not tell sites anything about my tracking preferences” is selected.
SeaMonkey
This setting is located in the Edit → Preferences → Privacy & Security main tab:
- The value is 1 when “I do not want to be tracked” is selected.
- The value is 0 when “I consent to being tracked” is selected.
First checked in
Has an effect in
- Mozilla Firefox (nightly builds since 2013-01-29; 21.0a1 and later)
- SeaMonkey (nightly builds since 2013-01-29; 2.18a1 and later)
Related bugs
- Bug 628197 - Implement do-not-track HTTP header
- Bug 765398 - Implement three-state UI for DNT (do not track me, okay to track me, decline to state)
- Bug 835134 - Modify Privacy & Security Preferences UI to reflect recent backend additions
