diff --git a/browser/app/Makefile.in b/browser/app/Makefile.in
index 2f665df8e166..e1c6d4b05128 100644
--- a/browser/app/Makefile.in
+++ b/browser/app/Makefile.in
@@ -363,6 +363,9 @@ libs::
 libs:: $(srcdir)/profile/prefs.js
 	$(INSTALL) $^ $(DIST)/bin/defaults/profile
 
+libs:: $(srcdir)/blocklist.xml
+	$(INSTALL) $^ $(DIST)/bin
+
 ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 
 APP_NAME = $(MOZ_APP_DISPLAYNAME)
diff --git a/browser/app/blocklist.xml b/browser/app/blocklist.xml
new file mode 100644
index 000000000000..bd22b625bf03
--- /dev/null
+++ b/browser/app/blocklist.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0"?>
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <emItem id="fdm_ffext@freedownloadmanager.org">
+      <versionRange minVersion="1.0" maxVersion="1.3.1">
+        <targetApplication id="{ec8030f7-c20a-464f-9b0e-13a3a9e97384}">
+           <versionRange minVersion="3.0a1" maxVersion="*"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="mozilla_cc@internetdownloadmanager.com">
+      <versionRange minVersion="2.1" maxVersion="3.3">
+        <targetApplication id="{ec8030f7-c20a-464f-9b0e-13a3a9e97384}">
+           <versionRange minVersion="3.0a1" maxVersion="*"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+  </emItems>
+</blocklist>
diff --git a/browser/installer/unix/packages-static b/browser/installer/unix/packages-static
index d420205d6778..ab2e3a719ca8 100644
--- a/browser/installer/unix/packages-static
+++ b/browser/installer/unix/packages-static
@@ -51,6 +51,7 @@ bin/run-mozilla.sh
 bin/plugins/libnullplugin.so
 bin/libsqlite3.so
 bin/README.txt
+bin/blocklist.xml
 
 ; [Components]
 bin/components/alerts.xpt
diff --git a/browser/installer/windows/packages-static b/browser/installer/windows/packages-static
index ba394058eb52..c7973956ee24 100644
--- a/browser/installer/windows/packages-static
+++ b/browser/installer/windows/packages-static
@@ -60,6 +60,7 @@ bin\plugins\npnul32.dll
 bin\LICENSE
 bin\README.txt
 bin\sqlite3.dll
+bin\blocklist.xml
 
 ; [Components]
 bin\components\alerts.xpt
diff --git a/toolkit/mozapps/extensions/src/nsBlocklistService.js b/toolkit/mozapps/extensions/src/nsBlocklistService.js
index cd7056ec7c32..ae85bfacad53 100644
--- a/toolkit/mozapps/extensions/src/nsBlocklistService.js
+++ b/toolkit/mozapps/extensions/src/nsBlocklistService.js
@@ -47,6 +47,7 @@ Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
 
 const TOOLKIT_ID                      = "toolkit@mozilla.org"
 const KEY_PROFILEDIR                  = "ProfD";
+const KEY_APPDIR                      = "XCurProcD";
 const FILE_BLOCKLIST                  = "blocklist.xml";
 const PREF_BLOCKLIST_URL              = "extensions.blocklist.url";
 const PREF_BLOCKLIST_ENABLED          = "extensions.blocklist.enabled";
@@ -275,7 +276,7 @@ Blocklist.prototype = {
 
   isAddonBlocklisted: function(id, version, appVersion, toolkitVersion) {
     if (!this._addonEntries)
-      this._loadBlocklistFromFile(getFile(KEY_PROFILEDIR, [FILE_BLOCKLIST]));
+      this._loadBlocklist();
     if (!appVersion)
       appVersion = gApp.version;
     if (!toolkitVersion)
@@ -398,6 +399,21 @@ Blocklist.prototype = {
         statusText);
   },
 
+  /**
+   * Finds the newest blocklist file from the application and the profile and
+   * load it or does nothing if neither exist.
+   */
+  _loadBlocklist: function() {
+    var profFile = getFile(KEY_PROFILEDIR, [FILE_BLOCKLIST]);
+    if (profFile.exists()) {
+      this._loadBlocklistFromFile(profFile);
+      return;
+    }
+    var appFile = getFile(KEY_APPDIR, [FILE_BLOCKLIST]);
+    if (appFile.exists())
+      this._loadBlocklistFromFile(appFile);
+  },
+
   /**
 #    The blocklist XML file looks something like this:
 #
@@ -581,7 +597,7 @@ Blocklist.prototype = {
 
   _checkPluginsList: function() {
     if (!this._addonEntries)
-      this._loadBlocklistFromFile(getFile(KEY_PROFILEDIR, [FILE_BLOCKLIST]));
+      this._loadBlocklist();
     var phs = Cc["@mozilla.org/plugin/host;1"].
               getService(Ci.nsIPluginHost);
     phs.getPluginTags({ }).forEach(this._checkPlugin, this);