Bug 844823 - Add a tutorial section on User Tracking to privacy_help.xhtml. r=IanN
authorrsx11m <rsx11m.pub@gmail.com>
Sun, 10 Mar 2013 20:32:53 -0500
changeset 12114 fc416f4edfca9c2ef2332951725d93c0815c3459
parent 12113 c164453b2b01ab4993219a128a199d677802f27c
child 12115 98928de881ed01421fb319efc92133164d07c447
push id8992
push userryanvm@gmail.com
push dateMon, 11 Mar 2013 14:17:24 +0000
treeherdercomm-central@fc416f4edfca [default view] [failures only]
perfherder[talos] [build metrics] [platform microbench] (compared to previous push)
reviewersIanN
bugs844823
Bug 844823 - Add a tutorial section on User Tracking to privacy_help.xhtml. r=IanN
suite/locales/en-US/chrome/common/help/privacy_help.xhtml
suite/locales/en-US/chrome/common/help/privsec_help.xhtml
suite/locales/en-US/chrome/common/help/suite-toc.rdf
--- a/suite/locales/en-US/chrome/common/help/privacy_help.xhtml
+++ b/suite/locales/en-US/chrome/common/help/privacy_help.xhtml
@@ -52,16 +52,18 @@
   privacy issues.</p>
 
 <div class="contentsBox">In this section:
   <ul>
     <li><a href="#what_information_does_my_browser_give_to_a_website">What
       Information Does My Browser Give to a Website?</a></li>
     <li><a href="#what_are_cookies_and_how_do_they_work">What Are Cookies, and
       How Do They Work?</a></li>
+    <li><a href="#why_and_how_are_websites_tracking_me">Why and How Are
+      Websites Tracking Me?</a></li>
     <li><a href="#how_can_i_control_web_pages_in_email_messages">How Can I
       Control Web Pages in Email Messages?</a></li>
     <li><a href="#how_can_i_make_sure_unauthorized_people_dont_use_information_about_me">How
       Can I Make Sure Unauthorized People Don&apos;t Use Information About
       Me?</a></li>
     </ul>
 </div>
 
@@ -164,16 +166,109 @@
 
 <p>If you want, you can <a href="using_priv_help.xhtml#cookies">adjust your
   cookie preferences</a> so that websites can store ordinary cookies but not
   third-party ones, or only for those sites that you have previously visited.
 </p>
 
 <p>[<a href="#privacy_on_the_internet">Return to beginning of section</a>]</p>
 
+<h2 id="why_and_how_are_websites_tracking_me">Why and How Are Websites
+  Tracking Me?</h2>
+
+<p>Websites are frequently interested in how they are used and by whom.
+  Thus, they may perform analytics on your browsing behavior, either by
+  themselves, or by utilizing a third-party service.</p>
+
+<p>Motivations for such user tracking may be a more personalized browsing
+  experience, e.g., by offering you services or products corresponding to your
+  previous browsing pattern, thus making it more likely that you are interested
+  in those. Third-party services are mostly interested in placing advertisements
+  that match your interests, thus making it more likely that you would click on
+  those ads, which in turn generates revenue.</p>
+
+<p>Of course, this list isn&apos;t all inclusive, other reasons may exist to
+  track the user&apos;s browsing behavior. To summarize, the trade-off is:</p>
+
+<ul>
+  <li><strong>Pros</strong>: Tracking of the user&apos;s browsing activity
+    allows the website to provide a more specific browsing experience, by
+    analyzing and matching your interests. You may even get offers you
+    wouldn&apos;t receive without prior knowledge of your usage pattern.</li>
+  <li><strong>Cons</strong>: In most cases, especially with third-party
+    tracking services, the information is gathered without the user&apos;s
+    consent, and its usage is not transparent. Comprehensive user profiling
+    across websites and over long periods of time may be considered intrusive
+    and a questionable practice violating the user&apos;s privacy.</li>
+</ul>
+
+<h3>What are the Mechanisms of User Tracking?</h3>
+
+<p>There isn&apos;t any single tracking mechanism, rather several methods
+  exist. For example, a website may employ one or more of these methods:</p>
+
+<ul>
+  <li><a href="#what_are_cookies_and_how_do_they_work">Cookies</a>: This is
+    the most direct form of user tracking. When visiting a website for the
+    first time, a random but unique identifier is created by that site and
+    stored as a cookie in &brandShortName;. When returning to the website,
+    this cookie associates you with any previous visit to that site. This is
+    especially effective for third-party tracking given that such a service
+    can collect data from multiple websites they have contracts with based on
+    just a single tracking cookie.</li>
+  <li><a href="#internet_address">Internet Address</a>: The IP address
+    identifies your location on your provider&apos;s network. It may also
+    serve as a reference to your geographical location. Even without cookies,
+    multiple accesses to one or more websites from the same location can be
+    associated with each other in this way.</li>
+  <li><a href="#what_information_does_my_browser_give_to_a_website">Browser
+    Fingerprinting</a>: This method attempts to identify specific users based
+    on the characteristics of the browser that they are using. Such
+    characteristics include browser type and version, platform used, language
+    preferences, and possibly installed plugins or add-ons.</li>
+</ul>
+
+<h3>What Can I Do to Prevent User Tracking?</h3>
+
+<p>In general, there is no complete protection against unwanted tracking of
+  one&apos;s browsing activities. However, there are a couple of ways to make
+  it harder to get tracked:</p>
+
+<ul>
+  <li><a href="privsec_help.xhtml#privacy_and_security">Do Not Track</a>:
+    This is a technology and policy that enables users to explicitly opt out
+    of or explicitly consent to tracking of their personal browsing behavior.
+    &brandShortName; supports sending <q>Do Not Track</q> requests to websites,
+    but they are not obligated to honor such requests.</li>
+  <!-- NOTE: link "Data Manager" below once bug 599097 has been fixed -->
+  <li><a href="using_priv_help.xhtml#cookies">Cookies</a>: The power of
+    tracking cookies is their persistence across sessions. Thus, when you
+    restart &brandShortName;, the identifying cookie will still be sent to
+    the website performing the analytics. One measure against third-party
+    tracking is to prohibit third-party cookies altogether; another option is
+    the restriction of cookies to the current session only. Some websites may
+    no longer function correctly, but you can add exceptions to such sites in
+    the Data Manager or with the Cookie Manager options in the Tools menu.</li>
+  <li><a href="nav_help.xhtml#plugins">Plugins</a>: Obscure plugins make
+    browser fingerprinting easier. Thus, if you need such plugins for some
+    websites but not in general, disable them in the Add-ons Manager until
+    you need them, to avoid that they are disclosed to tracking sites.</li>
+  <li><a href="customize_help.xhtml#add-ons">Add-ons</a>: There is a variety
+    of extensions available for privacy &amp; security support. Some of them
+    will block unwanted content from advertisers or tracking services, others
+    provide more control on private data collected by plugins (e.g., Flash
+    cookies), or when and how to run scripts or embedded content.</li>
+</ul>
+
+<p><strong>Note</strong>: The issues related to user tracking are complex.
+  This description is not intended to be complete but to provide you with some
+  basic information on this topic.</p>
+
+<p>[<a href="#privacy_on_the_internet">Return to beginning of section</a>]</p>
+
 <h2 id="how_can_i_control_web_pages_in_email_messages">How Can I Control Web
   Pages in Email Messages?</h2>
 
 <p>You can disable cookies, images, and plugins completely (JavaScript is
   always disabled) for web pages that are received as part of email
   messages.</p>
   
 <p>While it may be convenient to enable some or all of these capabilities when
--- a/suite/locales/en-US/chrome/common/help/privsec_help.xhtml
+++ b/suite/locales/en-US/chrome/common/help/privsec_help.xhtml
@@ -59,22 +59,24 @@
   <li>Open the <span class="mac">&brandShortName;</span>
     <span class="noMac">Edit</span> menu and choose Preferences.</li>
   <li>Click the Privacy &amp; Security category.</li>
 </ol>
 
 <h3>User Tracking</h3>
 
 <p>These settings allow you to communicate your tracking preferences to
-  websites. <q>Tracking</q> is a term that includes many different methods
-  that websites, advertisers, and others use to learn about your web browsing
-  behavior. This includes information about what sites you visit, things you
-  like or dislike, and purchase, thus affecting your privacy. They often use
-  this information to show ads, products, or services specifically targeted to
-  you. The following options are available in this section:</p>
+  websites.
+  <q><a href="privacy_help.xhtml#why_and_how_are_websites_tracking_me">Tracking</a></q>
+  is a term that includes many different methods that websites, advertisers,
+  and others use to learn about your web browsing behavior. This includes
+  information about what sites you visit, things you like or dislike, and
+  purchase, thus affecting your privacy. They often use this information to
+  show ads, products, or services specifically targeted to you. The following
+  options are available in this section:</p>
 
 <ul>
   <li><strong>Tell websites about my tracking preference</strong>: Check this
     to instruct &brandShortName; to inform every website you visit (as well as
     their advertisers and other content providers) whether or not you want
     your browsing behavior tracked:
     <ul>
       <li><strong>I do not want to be tracked</strong>: Select this option
--- a/suite/locales/en-US/chrome/common/help/suite-toc.rdf
+++ b/suite/locales/en-US/chrome/common/help/suite-toc.rdf
@@ -840,16 +840,17 @@
     </nc:subheadings>
   </rdf:Description>
 
 <rdf:Description about="#privacy-doc">
     <nc:subheadings>
       <rdf:Seq>
         <rdf:li><rdf:Description ID="privacy-doc-visit" nc:name="What Information Does My Browser Give to a Website?"  		nc:link="privacy_help.xhtml#what_information_does_my_browser_give_to_a_website"/> </rdf:li>
         <rdf:li><rdf:Description ID="privacy-doc-cookies" nc:name="What Are Cookies, and How Do They Work?"  		nc:link="privacy_help.xhtml#what_are_cookies_and_how_do_they_work"/> </rdf:li>
+        <rdf:li><rdf:Description ID="privacy-doc-tracking" nc:name="Why and How Are Websites Tracking Me?"  		nc:link="privacy_help.xhtml#why_and_how_are_websites_tracking_me"/> </rdf:li>
         <rdf:li><rdf:Description ID="privacy-doc-email" nc:name="How Can I Control Web Pages in Email Messages?"  		nc:link="privacy_help.xhtml#how_can_i_control_web_pages_in_email_messages"/> </rdf:li>
         <rdf:li><rdf:Description ID="privacy-doc-unauth" nc:name="How Can I Make Sure Unauthorized People Don't Use Information About Me?"  		nc:link="privacy_help.xhtml#how_can_i_make_sure_unauthorized_people_dont_use_information_about_me"/> </rdf:li>
       </rdf:Seq>
     </nc:subheadings>
   </rdf:Description>
 
 <rdf:Description about="#using-priv-help-cookies">
     <nc:subheadings>