diff --git a/common/modules/options.jsm b/common/modules/options.jsm
index 904787c0..3164862c 100644
--- a/common/modules/options.jsm
+++ b/common/modules/options.jsm
@@ -1587,18 +1587,6 @@ var Options = Module("options", {
                                 dactyl.reportError(e);
                             }
             },
-            privateEnter: function privateEnter() {
-                for (let opt of values(modules.options._options))
-                    if (opt.privateData && (!callable(opt.privateData) || opt.privateData(opt.value)))
-                        opt.oldValue = opt.value;
-            },
-            privateLeave: function privateLeave() {
-                for (let opt of values(modules.options._options))
-                    if (opt.oldValue != null) {
-                        opt.value = opt.oldValue;
-                        opt.oldValue = null;
-                    }
-            }
         });
     }
 });
diff --git a/common/modules/sanitizer.jsm b/common/modules/sanitizer.jsm
index cdcf9177..b9279392 100644
--- a/common/modules/sanitizer.jsm
+++ b/common/modules/sanitizer.jsm
@@ -1,5 +1,5 @@
 // Copyright (c) 2009 by Doug Kearns <dougkearns@gmail.com>
-// Copyright (c) 2009-2014 Kris Maglione <maglione.k at Gmail>
+// Copyright (c) 2009-2015 Kris Maglione <maglione.k at Gmail>
 //
 // This work is licensed for reuse under an MIT license. Details are
 // given in the LICENSE.txt file included with this file.
@@ -273,15 +273,6 @@ var Sanitizer = Module("sanitizer", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakRef
                         apply(params, "action", arg);
                 },
                 getWindow(params.action));
-
-        if (params.privateEnter || params.privateLeave)
-            storage.addObserver("private-mode",
-                function (key, event, arg) {
-                    let meth = params[arg ? "privateEnter" : "privateLeave"];
-                    if (meth)
-                        meth.call(params);
-                },
-                getWindow(params.privateEnter || params.privateLeave));
     },
 
     observers: {
@@ -302,13 +293,6 @@ var Sanitizer = Module("sanitizer", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakRef
             if (this.runAtShutdown && !this.sanitizeItems(null, Range(), null, "shutdown"))
                 this.ranAtShutdown = true;
         },
-        "private-browsing": function (subject, data) {
-            if (data == "enter")
-                storage.privateMode = true;
-            else if (data == "exit")
-                storage.privateMode = false;
-            storage.fireEvent("private-mode", "change", storage.privateMode);
-        }
     },
 
     /**
@@ -430,10 +414,6 @@ var Sanitizer = Module("sanitizer", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakRef
     autocommands: function initAutocommands(dactyl, modules, window) {
         const { autocommands } = modules;
 
-        storage.addObserver("private-mode",
-            function (key, event, value) {
-                autocommands.trigger("PrivateMode", { state: value });
-            }, window);
         storage.addObserver("sanitizer",
             function (key, event, value) {
                 if (event == "domain")
@@ -447,8 +427,6 @@ var Sanitizer = Module("sanitizer", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakRef
         commands.add(["sa[nitize]"],
             "Clear private data",
             function (args) {
-                dactyl.assert(!modules.options['private'], _("command.sanitize.privateMode"));
-
                 if (args["-host"] && !args.length && !args.bang)
                     args[0] = "all";
 
diff --git a/common/modules/services.jsm b/common/modules/services.jsm
index 5de5d3c2..458a3e33 100644
--- a/common/modules/services.jsm
+++ b/common/modules/services.jsm
@@ -62,7 +62,6 @@ var Services = Module("Services", {
         this.add("observer",            "@mozilla.org/observer-service;1",                  "nsIObserverService");
         this.add("pref",                "@mozilla.org/preferences-service;1",               ["nsIPrefBranch2", "nsIPrefService"]);
         this.add("printSettings",       "@mozilla.org/gfx/printsettings-service;1",         "nsIPrintSettingsService");
-        this.add("privateBrowsing",     "@mozilla.org/privatebrowsing;1",                   "nsIPrivateBrowsingService");
         this.add("profile",             "@mozilla.org/toolkit/profile-service;1",           "nsIToolkitProfileService");
         this.add("resource:",           this.PROTOCOL + "resource",                         ["nsIProtocolHandler", "nsIResProtocolHandler"]);
         this.add("runtime",             "@mozilla.org/xre/runtime;1",                       ["nsIXULAppInfo", "nsIXULRuntime"]);
diff --git a/common/modules/storage.jsm b/common/modules/storage.jsm
index 19ef0b54..52f40f97 100644
--- a/common/modules/storage.jsm
+++ b/common/modules/storage.jsm
@@ -68,7 +68,7 @@ var StoreBase = Class("StoreBase", {
             storage.infoPath.child(this.name).path);
     },
 
-    save: function () { (self.storage || storage)._saveData(this); },
+    save: function () { (this.storage || storage)._saveData(this); },
 
     "@@iterator": function () iter(this._object)
 });
@@ -230,8 +230,9 @@ var Storage = Module("Storage", {
     },
 
     _saveData: promises.task(function* saveData(obj) {
-        if (obj.privateData && storage.privateMode)
+        if (obj.privateData && this.privateMode)
             return;
+
         if (obj.store && storage.infoPath) {
             var { path } = storage.infoPath.child(obj.name);
             yield OS.File.makeDir(storage.infoPath.path,
diff --git a/pentadactyl/NEWS b/pentadactyl/NEWS
index 8179bd36..f6f075cc 100644
--- a/pentadactyl/NEWS
+++ b/pentadactyl/NEWS
@@ -1,5 +1,6 @@
 1.2pre:
     • Remove 'jsdebugger' option.
+    • Remove defunct 'PrivateMode' autocommand.
 
 1.1:
     • Vim runtime files:
@@ -9,6 +10,7 @@
     • Removed <F1> and <A-F1> mappings.
     • Add :private command.
     • Better per-window private browsing support.
+    • Removed 'private' option.
 
 1.0:
     • Extensive Firefox 4 support, including:
diff --git a/pentadactyl/config.json b/pentadactyl/config.json
index dc1e8ec6..63ceedb2 100644
--- a/pentadactyl/config.json
+++ b/pentadactyl/config.json
@@ -43,7 +43,6 @@
         "LocationChange":   "Triggered when changing tabs or when navigation to a new location",
         "PageLoadPre":      "Triggered after a page load is initiated",
         "PageLoad":         "Triggered when a page gets (re)loaded/opened",
-        "PrivateMode":      "Triggered when private browsing mode is activated or deactivated",
         "Sanitize":         "Triggered when a sanitizeable item is cleared",
         "ShellCmdPost":     "Triggered after executing a shell command with :!cmd",
         "Enter":            "Triggered after Firefox starts",
diff --git a/pentadactyl/locale/en-US/autocommands.xml b/pentadactyl/locale/en-US/autocommands.xml
index d2aa0ce4..065a3647 100644
--- a/pentadactyl/locale/en-US/autocommands.xml
+++ b/pentadactyl/locale/en-US/autocommands.xml
@@ -18,7 +18,6 @@
     <dt>LocationChange</dt>    <dd>Triggered when changing tabs or when navigating to a new location</dd>
     <dt>PageLoadPre</dt>       <dd>Triggered after a page load is initiated</dd>
     <dt>PageLoad</dt>          <dd>Triggered when a page gets (re)loaded/opened</dd>
-    <dt>PrivateMode</dt>       <dd>Triggered when private browsing mode is activated or deactivated</dd>
     <dt>Sanitize</dt>          <dd>Triggered when private data are sanitized</dd>
     <dt>ShellCmdPost</dt>      <dd>Triggered after executing a shell command with <ex>:!</ex><a>cmd</a></dd>
     <dt>Enter</dt>             <dd>Triggered after &dactyl.host; starts</dd>
@@ -35,7 +34,7 @@
     <dt>&lt;keyword></dt>   <dd>The keywords applied to the bookmark. Only for <em>BookmarkChange</em>, <em>BookmarkRemove</em>.</dd>
     <dt>&lt;name></dt>      <dd>The name of the item. Only for <em>ColorScheme</em> and <em>Sanitize</em>.</dd>
     <dt>&lt;size></dt>      <dd>The size of a downloaded file. Only for <em>DownloadPost</em>.</dd>
-    <dt>&lt;state></dt>     <dd>The new state. Only for <em>Fullscreen</em> and <em>PrivateMode</em>.</dd>
+    <dt>&lt;state></dt>     <dd>The new state. Only for <em>Fullscreen</em>.</dd>
     <dt>&lt;tab></dt>       <dd>The tab in which the event occurred. Only for <em>DOMLoad</em>, <em>PageLoad</em> and <em>PageLoadPre</em>.</dd>
     <dt>&lt;tags></dt>      <dd>The tags applied to <em>&lt;url></em>. Only for <em>Bookmark*</em>.</dd>
     <dt>&lt;title></dt>     <dd>The page, bookmark or download title.</dd>