159 lines
8.1 KiB
HTML
159 lines
8.1 KiB
HTML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"[
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<!ENTITY % brandDTD SYSTEM "chrome://global/locale/brand.dtd" >
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%brandDTD;
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]
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>
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>Managing Cookies</title>
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<link rel="stylesheet" type="text/css" href="chrome://help/skin/helpFileLayout.css"/>
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</head>
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<body>
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<h1>Managing Cookies</h1>
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<p>This document explains what cookies are, how they are used, and how you can gain
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control over the cookies stored on your computer by using the Cookie Manager in
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&brandShortName;.</p>
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<div class="contentsBox">In this section:
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<ul>
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<li><a href="#what_is_a_cookie">What is a Cookie?</a></li>
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<li><a href="#setting_up_cookie_rules">Setting Up Cookie Rules</a></li>
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<li><a href="#accepting_and_blocking_cookies">Accepting and Blocking Cookies</a></li>
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<li><a href="#the_cookie_manager">The Cookie Manager</a></li>
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</ul>
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</div>
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<h2 id="what_is_a_cookie">What is a Cookie?</h2>
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<p>A cookie is a file created by an Internet site to store information on your
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computer, such as your preferences when visiting that site. When you visit a site
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that uses cookies, the site might ask &brandShortName; to place one or more cookies
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on your hard disk.</p>
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<p>Later, when you return to the site, &brandShortName; sends back the cookies that
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belong to the site. This allows the site to present you with information customized
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to fit your needs.</p>
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<p>Cookies can also store personally identifiable information. Personally identifiable
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information is information that can be used to identify or contact you, such as
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your name, e-mail address, home or work address, or telephone number. However, a
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Web site only has access to the personal information that you provide. For
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example, a Web site cannot determine your e-mail name unless you provide it. Also,
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a Web site cannot gain access to other information on your computer.</p>
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<p>When you use the default cookie settings, this activity is invisible to you,
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and you won't know when a Web site is setting a cookie or when &brandShortName;
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is sending a Web site their cookie. However, you can set your preferences so that
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you will be asked before a cookie is set.</p>
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<h2 id="setting_up_cookie_rules">Setting Up Cookie Rules</h2>
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<div>
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By default &brandShortName; accepts all cookies. If you want to gain more control over
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what cookies are stored, follow these instructions:
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<ol>
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<li>Select Tools > Options... from the menu to show the Options window.</li>
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<li>Click the Privacy panel and then click on the Cookies label.</li>
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<li>Check the but ask before accepting checkbox.</li>
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</ol>
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</div>
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<p><img src="images/cookie_ask.png" alt="" width="454" height="153"/><br/>
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After this is done, you may decide exactly which cookies should and should not be saved.
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</p>
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<h3 id="other_settings">Other Settings</h3>
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<div>There are also other options that affects how cookies are managed by Mozilla
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Firebird. They are not needed for the cookie rules to work but are explained
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anyway:
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<ul>
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<li><strong>Enable Cookies</strong><br/>If you don't want any sites to store
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cookies on your computer, uncheck this option. Note that some sites may not work
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properly when cookies are disabled.</li>
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<li><strong>for the originating Web site only</strong><br/>If &brandShortName;
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stores a site's cookie, it will return the cookie only to that particular site.
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&brandShortName; will not provide one site with cookies set by another. Since a Web
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site can only receive its own cookies, it can learn about your activities while you
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are at that site but not your activities in general while surfing the Web.<br/><br/>
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However, sometimes a Web site displays content that is hosted on another site.
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That content can be anything from an image to text or an advertisement. The other
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Web site that hosts also has the ability to store a cookie in &brandShortName;, even
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though you haven't visited the site directly.<br/><br/>
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Cookies that are stored by a site other than the one you are visiting are called
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third-party cookies or foreign cookies. Web sites sometimes use third-party
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cookies with transparent GIFs, which are special images that help sites count
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users, track email responses, learn more about how visitors use the site, or
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customize your browsing experience. (Transparent GIFs are also known as web
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beacons or web bugs.)<br/><br/>
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When this checkbox is checked, it blocks these foreign cookies from being saved.</li>
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<li><strong>for the current session only</strong><br/>If this option is selected,
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the cookie information will be removed when you restart &brandShortName;. Web sites
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requiring the use of cookies will still work, but if you restart &brandShortName;,
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the Web site will think that you logged into the site for the first time again.</li>
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</ul>
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</div>
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<h2 id="accepting_and_blocking_cookies">Accepting and Blocking Cookies</h2>
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<div>
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Assuming that you've enabled the cookie rules explained above, you'll see a dialog
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whenever a site tries to save a cookie on your computer:<br/>
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<img src="images/cookie_accept.png" alt="" width="379" height="111"/>
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<ul>
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<li><strong>Allowing a Cookie</strong><br/>To allow this particular cookie, just
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click <em>Allow</em>. If you trust the site and don't want this dialog to be
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shown each time the site tries to save a cookie, check the <em>Use my choice for all
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cookies from this site</em> checkbox and then click <em>Allow</em>. &brandShortName;
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will remember this and never ask about cookies for this site again. If you later regret
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your choice, read about the <em>Cookie Manager</em>.</li>
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<li><strong>Blocking a Cookie</strong><br/>If you don't want this cookie to be
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saved, click Deny. If you don't trust the site or suspect that it's compromising
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your privacy, check the <em>Use my choice for all cookies from this site</em>
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checkbox and then click <em>Block</em>. &brandShortName; will then put this site
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on the list of blocked sites and never save cookies for it. This choice can be
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undone using the Cookie Manager.</li>
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</ul>
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</div>
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<h2 id="the_cookie_manager">The Cookie Manager</h2>
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<p>The Cookie Manager is where you can view and remove cookies as well as managing the
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list of sites that are allowed or not allowed to store cookies on your computer.</p>
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<h3 id="the_cookie_list">The Cookie List</h3>
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<p>
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<img src="images/cookie_manager.png" alt="" width="384" height="358"/><br/>
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The <em>Stored Cookies</em> tab lists all cookies currently stored on your computer.
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You can select them to display more information about them.</p>
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<p>To remove a cookie from the list, select it and click <em>Remove Cookie</em>. To
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remove all cookies, click <em>Remove All Cookies</em>. (This is the same as clicking
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the <em>Clear</em> button from the <a href="prefs.xhtml#privacy_options">Privacy panel</a>
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of the <a href="prefs.xhtml">Options window</a>.)</p>
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<p><strong>Don't allow sites that set removed cookies to set future cookies</strong><br/>
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Even if you remove cookies now, you will reacquire those same cookies the next time
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you return to the Web site. To prevent that from happening, select this checkbox.
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When this checkbox is selected, Web sites for the cookies that you are removing are
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added to the list of sites whose cookies will automatically be rejected.
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<strong>Important</strong>: You must check this option before you start to remove cookies,
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or the sites will not be added to the list of blocked sites.</p>
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<h3 id="the_site_list">The Site List</h3>
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<p><img src="images/cookie_list.png" width="384" height="265" alt=""/><br/>
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This is the list of sites that are either allowed or not allowed to store cookies on
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your computer. In the Status column, you can see if a site is blocked or allowed.</p>
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<p>To remove a site from this list, select it and click <em>Remove Site</em>. To clear
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the list completely, click <em>Remove All Sites</em>. This will reset the cookie
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rules and you will see dialogs for each cookie again.</p>
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<div class="contentsBox"><em>19 August 2003</em></div>
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<p>Copyright © 2003 Contributors to the Firebird Help Project.</p>
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</body>
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</html>
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