diff --git a/toolkit/components/addoncompat/RemoteAddonsChild.jsm b/toolkit/components/addoncompat/RemoteAddonsChild.jsm
index ecce33c9237..bf135ab8ea2 100644
--- a/toolkit/components/addoncompat/RemoteAddonsChild.jsm
+++ b/toolkit/components/addoncompat/RemoteAddonsChild.jsm
@@ -203,11 +203,14 @@ let ContentPolicyChild = {
 
 // This is a shim channel whose only purpose is to return some string
 // data from an about: protocol handler.
-function AboutProtocolChannel(uri, contractID)
+function AboutProtocolChannel(uri, contractID, loadInfo)
 {
   this.URI = uri;
   this.originalURI = uri;
   this._contractID = contractID;
+  this._loadingPrincipal = loadInfo.loadingPrincipal;
+  this._securityFlags = loadInfo.securityFlags;
+  this._contentPolicyType = loadInfo.contentPolicyType;
 }
 
 AboutProtocolChannel.prototype = {
@@ -227,7 +230,10 @@ AboutProtocolChannel.prototype = {
                .getService(Ci.nsISyncMessageSender);
     let rval = cpmm.sendRpcMessage("Addons:AboutProtocol:OpenChannel", {
       uri: this.URI.spec,
-      contractID: this._contractID
+      contractID: this._contractID,
+      loadingPrincipal: this._loadingPrincipal,
+      securityFlags: this._securityFlags,
+      contentPolicyType: this._contentPolicyType
     }, {
       notificationCallbacks: this.notificationCallbacks,
       loadGroupNotificationCallbacks: this.loadGroup ? this.loadGroup.notificationCallbacks : null,
@@ -327,8 +333,8 @@ AboutProtocolInstance.prototype = {
   // available to CPOWs. Consequently, we return a shim channel that,
   // when opened, asks the parent to open the channel and read out all
   // the data.
-  newChannel: function(uri) {
-    return new AboutProtocolChannel(uri, this._contractID);
+  newChannel: function(uri, loadInfo) {
+    return new AboutProtocolChannel(uri, this._contractID, loadInfo);
   },
 
   QueryInterface: XPCOMUtils.generateQI([Ci.nsIFactory, Ci.nsIAboutModule])
diff --git a/toolkit/components/addoncompat/RemoteAddonsParent.jsm b/toolkit/components/addoncompat/RemoteAddonsParent.jsm
index 95f9f729d77..e60a16a01af 100644
--- a/toolkit/components/addoncompat/RemoteAddonsParent.jsm
+++ b/toolkit/components/addoncompat/RemoteAddonsParent.jsm
@@ -248,9 +248,19 @@ let AboutProtocolParent = {
 
     let uri = BrowserUtils.makeURI(msg.data.uri);
     let contractID = msg.data.contractID;
-    let module = Cc[contractID].getService(Ci.nsIAboutModule);
+    let loadingPrincipal = msg.data.loadingPrincipal;
+    let securityFlags = msg.data.securityFlags;
+    let contentPolicyType = msg.data.contentPolicyType;
     try {
-      let channel = module.newChannel(uri, null);
+      let channel = NetUtil.newChannel2(uri,
+                                        null,
+                                        null,
+                                        null,  // aLoadingNode
+                                        loadingPrincipal,
+                                        null,  // aTriggeringPrincipal
+                                        securityFlags,
+                                        contentPolicyType);
+
       // We're not allowed to set channel.notificationCallbacks to a
       // CPOW, since the setter for notificationCallbacks is in C++,
       // which can't tolerate CPOWs. Instead we just use a JS object
diff --git a/toolkit/components/passwordmgr/test/test_bug_627616.html b/toolkit/components/passwordmgr/test/test_bug_627616.html
index 738a6341dc3..7a25cf653d2 100644
--- a/toolkit/components/passwordmgr/test/test_bug_627616.html
+++ b/toolkit/components/passwordmgr/test/test_bug_627616.html
@@ -11,6 +11,8 @@
     SimpleTest.waitForExplicitFinish();
 
     var Cc = SpecialPowers.Cc;
+    var Ci = SpecialPowers.Ci;
+    var systemPrincipal = SpecialPowers.Services.scriptSecurityManager.getSystemPrincipal();
 
     testNum = 1;
 
@@ -35,7 +37,14 @@
         var ios = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService);
         var pps = Cc["@mozilla.org/network/protocol-proxy-service;1"].getService();
 
-        var channel = ios.newChannel("http://example.com", null, null);
+        var channel = ios.newChannel2("http://example.com",
+                                      null,
+                                      null,
+                                      null,      // aLoadingNode
+                                      systemPrincipal,
+                                      null,      // aTriggeringPrincipal
+                                      Ci.nsILoadInfo.SEC_NORMAL,
+                                      Ci.nsIContentPolicy.TYPE_OTHER);
         pps.asyncResolve(channel, 0, resolveCallback);
     }
 
diff --git a/toolkit/components/passwordmgr/test/test_prompt.html b/toolkit/components/passwordmgr/test/test_prompt.html
index 4fa2da52dad..785c69b7717 100644
--- a/toolkit/components/passwordmgr/test/test_prompt.html
+++ b/toolkit/components/passwordmgr/test/test_prompt.html
@@ -26,6 +26,7 @@ var tmplogin, login1, login2A, login2B, login2C, login2D, login2E, login3A, logi
 var mozproxy, proxiedHost = "http://mochi.test:8888";
 var proxyChannel;
 var testNum = 1;
+var systemPrincipal = SpecialPowers.Services.scriptSecurityManager.getSystemPrincipal();
 
 function initLogins(pi) {
   observerService = Cc["@mozilla.org/observer-service;1"].
@@ -163,8 +164,7 @@ var resolveCallback = SpecialPowers.wrapCallbackObject({
                                          null,
                                          null,
                                          null,      // aLoadingNode
-                                         SpecialPowers.Services.
-                                         scriptSecurityManager.getSystemPrincipal(),
+                                         systemPrincipal,
                                          null,      // aTriggeringPrincipal
                                          Ci.nsILoadInfo.SEC_NORMAL,
                                          Ci.nsIContentPolicy.TYPE_OTHER);
@@ -179,7 +179,14 @@ function startup() {
 
   var pps = SpecialPowers.Cc["@mozilla.org/network/protocol-proxy-service;1"].getService();
 
-  var channel = ios.newChannel("http://example.com", null, null);
+  var channel = ios.newChannel2("http://example.com",
+                                null,
+                                null,
+                                null,      // aLoadingNode
+                                systemPrincipal,
+                                null,      // aTriggeringPrincipal
+                                Ci.nsILoadInfo.SEC_NORMAL,
+                                Ci.nsIContentPolicy.TYPE_OTHER);
   pps.asyncResolve(channel, 0, resolveCallback);
 }
 
diff --git a/toolkit/components/passwordmgr/test/test_prompt_async.html b/toolkit/components/passwordmgr/test/test_prompt_async.html
index 7d7223efc6b..44eb9db5c59 100644
--- a/toolkit/components/passwordmgr/test/test_prompt_async.html
+++ b/toolkit/components/passwordmgr/test/test_prompt_async.html
@@ -146,7 +146,17 @@
             var pps = SpecialPowers.Cc["@mozilla.org/network/protocol-proxy-service;1"]
                                    .getService();
 
-            var channel = ios.newChannel("http://example.com", null, null);
+            var systemPrincipal =  SpecialPowers.Services.scriptSecurityManager
+                                                .getSystemPrincipal();
+
+            var channel = ios.newChannel2("http://example.com",
+                                          null,
+                                          null,
+                                          null,      // aLoadingNode
+                                          systemPrincipal,
+                                          null,      // aTriggeringPrincipal
+                                          Ci.nsILoadInfo.SEC_NORMAL,
+                                          Ci.nsIContentPolicy.TYPE_OTHER);
             pps.asyncResolve(channel, 0, resolveCallback);
 	}