diff --git a/mozilla/browser/app/profile/firefox.js b/mozilla/browser/app/profile/firefox.js
index f6af0808237..e1a26dbbf8f 100644
--- a/mozilla/browser/app/profile/firefox.js
+++ b/mozilla/browser/app/profile/firefox.js
@@ -275,6 +275,7 @@ pref("privacy.item.downloads",  true);
 pref("privacy.item.cookies",    false);
 pref("privacy.item.cache",      true);
 pref("privacy.item.siteprefs",  false);
+pref("privacy.item.sessions",   true);
 
 pref("privacy.sanitize.sanitizeOnShutdown", false);
 pref("privacy.sanitize.promptOnSanitize", true);
diff --git a/mozilla/browser/base/content/sanitize.js b/mozilla/browser/base/content/sanitize.js
index 6eeff4da28b..b0b90e25b2f 100644
--- a/mozilla/browser/base/content/sanitize.js
+++ b/mozilla/browser/base/content/sanitize.js
@@ -181,6 +181,26 @@ Sanitizer.prototype = {
                               .getService(Components.interfaces.nsIPasswordManager);
         return pwmgr.enumerator.hasMoreElements();
       }
+    },
+    
+    sessions: {
+      clear: function ()
+      {
+        // clear all auth tokens
+        var sdr = Components.classes["@mozilla.org/security/sdr;1"]
+                            .getService(Components.interfaces.nsISecretDecoderRing);
+        sdr.logoutAndTeardown();
+
+        // clear plain HTTP auth sessions
+        var authMgr = Components.classes['@mozilla.org/network/http-auth-manager;1']
+                                .getService(Components.interfaces.nsIHttpAuthManager);
+        authMgr.clearAll();
+      },
+      
+      get canClear()
+      {
+        return true;
+      }
     }
   }
 };
diff --git a/mozilla/browser/base/content/sanitize.xul b/mozilla/browser/base/content/sanitize.xul
index 5d10031f7e5..d48902b4960 100644
--- a/mozilla/browser/base/content/sanitize.xul
+++ b/mozilla/browser/base/content/sanitize.xul
@@ -130,6 +130,7 @@
       <preference id="privacy.item.downloads"             name="privacy.item.downloads"             type="bool" readonly="true"/>
       <preference id="privacy.item.cookies"               name="privacy.item.cookies"               type="bool" readonly="true"/>
       <preference id="privacy.item.cache"                 name="privacy.item.cache"                 type="bool" readonly="true"/>
+      <preference id="privacy.item.sessions"              name="privacy.item.sessions"              type="bool" readonly="true"/>
     </preferences>
     <preferences>
       <preference id="privacy.sanitize.promptOnSanitize"  name="privacy.sanitize.promptOnSanitize"  type="bool" instantApply="true"/>
@@ -156,6 +157,9 @@
       <checkbox label="&itemCache.label;" accesskey="&itemCache.accesskey;"
                 preference="privacy.item.cache"
                 onsyncfrompreference="return gSanitizePromptDialog.onReadGeneric();"/>
+      <checkbox label="&itemSessions.label;" accesskey="&itemSessions.accesskey;"
+                preference="privacy.item.sessions"
+                onsyncfrompreference="return gSanitizePromptDialog.onReadGeneric();"/>
     </groupbox>
     
     <groupbox orient="vertical" align="start">
diff --git a/mozilla/browser/components/preferences/sanitize.xul b/mozilla/browser/components/preferences/sanitize.xul
index a2df4e07bee..99b50339263 100644
--- a/mozilla/browser/components/preferences/sanitize.xul
+++ b/mozilla/browser/components/preferences/sanitize.xul
@@ -62,6 +62,7 @@
       <preference id="privacy.item.downloads"             name="privacy.item.downloads"             type="bool"/>
       <preference id="privacy.item.cookies"               name="privacy.item.cookies"               type="bool"/>
       <preference id="privacy.item.cache"                 name="privacy.item.cache"                 type="bool"/>
+      <preference id="privacy.item.sessions"              name="privacy.item.sessions"              type="bool"/>
 
       <preference id="privacy.sanitize.sanitizeOnShutdown" name="privacy.sanitize.sanitizeOnShutdown" type="bool"/>
       <preference id="privacy.sanitize.promptOnSanitize"   name="privacy.sanitize.promptOnSanitize"   type="bool"/>
@@ -78,6 +79,7 @@
       <checkbox label="&itemDownloads.label;" accesskey="&itemDownloads.accesskey;" preference="privacy.item.downloads"/>
       <checkbox label="&itemCookies.label;" accesskey="&itemCookies.accesskey;" preference="privacy.item.cookies"/>
       <checkbox label="&itemCache.label;" accesskey="&itemCache.accesskey;" preference="privacy.item.cache"/>
+      <checkbox label="&itemSessions.label;"  accesskey="&itemSessions.accesskey;" preference="privacy.item.sessions"/>
     </groupbox>
     
     <groupbox orient="vertical" align="start">
diff --git a/mozilla/browser/locales/en-US/chrome/browser/preferences/sanitize.dtd b/mozilla/browser/locales/en-US/chrome/browser/preferences/sanitize.dtd
index c44ef4bc23d..f5d4035b808 100644
--- a/mozilla/browser/locales/en-US/chrome/browser/preferences/sanitize.dtd
+++ b/mozilla/browser/locales/en-US/chrome/browser/preferences/sanitize.dtd
@@ -15,6 +15,8 @@
 <!ENTITY itemCache.accesskey          "a">
 <!ENTITY itemDownloads.label          "Download History">
 <!ENTITY itemDownloads.accesskey      "D">
+<!ENTITY itemSessions.label           "Authenticated Sessions">
+<!ENTITY itemSessions.accesskey       "S">
 
 <!ENTITY settings.label               "Sanitize Settings">
 <!ENTITY sanitizeOnShutDown.label     "Sanitize &brandShortName; on shutdown">
diff --git a/mozilla/browser/locales/en-US/chrome/browser/sanitize.dtd b/mozilla/browser/locales/en-US/chrome/browser/sanitize.dtd
index 753aac6747d..5e94895b54a 100644
--- a/mozilla/browser/locales/en-US/chrome/browser/sanitize.dtd
+++ b/mozilla/browser/locales/en-US/chrome/browser/sanitize.dtd
@@ -13,6 +13,8 @@
 <!ENTITY itemCache.accesskey          "a">
 <!ENTITY itemDownloads.label          "Download History">
 <!ENTITY itemDownloads.accesskey      "D">
+<!ENTITY itemSessions.label           "Authenticated Sessions">
+<!ENTITY itemSessions.accesskey       "S">
 
 <!ENTITY promptOnSanitize.label       "Ask me before Sanitizing &brandShortName;">
 <!ENTITY promptOnSanitize.accesskey   "k">