diff --git a/services/common/rest.js b/services/common/rest.js
index 98cb6a71365..daf4dff6835 100644
--- a/services/common/rest.js
+++ b/services/common/rest.js
@@ -305,7 +305,12 @@ RESTRequest.prototype = {
     }
 
     // Create and initialize HTTP channel.
-    let channel = Services.io.newChannelFromURI(this.uri, null, null)
+    let channel = Services.io.newChannelFromURI2(this.uri,
+                                                 null,      // aLoadingNode
+                                                 Services.scriptSecurityManager.getSystemPrincipal(),
+                                                 null,      // aTriggeringPrincipal
+                                                 Ci.nsILoadInfo.SEC_NORMAL,
+                                                 Ci.nsIContentPolicy.TYPE_OTHER)
                           .QueryInterface(Ci.nsIRequest)
                           .QueryInterface(Ci.nsIHttpChannel);
     this.channel = channel;
diff --git a/services/sync/Weave.js b/services/sync/Weave.js
index 1d982296f91..0116e70c743 100644
--- a/services/sync/Weave.js
+++ b/services/sync/Weave.js
@@ -180,7 +180,12 @@ AboutWeaveLog.prototype = {
   newChannel: function(aURI) {
     let dir = FileUtils.getDir("ProfD", ["weave", "logs"], true);
     let uri = Services.io.newFileURI(dir);
-    let channel = Services.io.newChannelFromURI(uri);
+    let channel = Services.io.newChannelFromURI2(uri,
+                                                 null,      // aLoadingNode
+                                                 Services.scriptSecurityManager.getSystemPrincipal(),
+                                                 null,      // aTriggeringPrincipal
+                                                 Ci.nsILoadInfo.SEC_NORMAL,
+                                                 Ci.nsIContentPolicy.TYPE_OTHER);
     channel.originalURI = aURI;
 
     // Ensure that the about page has the same privileges as a regular directory
diff --git a/services/sync/modules/resource.js b/services/sync/modules/resource.js
index d53353eaff9..1c2a67b9021 100644
--- a/services/sync/modules/resource.js
+++ b/services/sync/modules/resource.js
@@ -146,7 +146,14 @@ AsyncResource.prototype = {
   // to obtain a request channel.
   //
   _createRequest: function Res__createRequest(method) {
-    let channel = Services.io.newChannel(this.spec, null, null)
+    let channel = Services.io.newChannel2(this.spec,
+                                          null,
+                                          null,
+                                          null,      // aLoadingNode
+                                          Services.scriptSecurityManager.getSystemPrincipal(),
+                                          null,      // aTriggeringPrincipal
+                                          Ci.nsILoadInfo.SEC_NORMAL,
+                                          Ci.nsIContentPolicy.TYPE_OTHER)
                           .QueryInterface(Ci.nsIRequest)
                           .QueryInterface(Ci.nsIHttpChannel);
 
diff --git a/services/sync/tests/unit/test_errorhandler_filelog.js b/services/sync/tests/unit/test_errorhandler_filelog.js
index 681e1daba4f..cfaedcb70c7 100644
--- a/services/sync/tests/unit/test_errorhandler_filelog.js
+++ b/services/sync/tests/unit/test_errorhandler_filelog.js
@@ -7,6 +7,7 @@ Cu.import("resource://services-sync/service.js");
 Cu.import("resource://services-sync/util.js");
 Cu.import("resource://gre/modules/FileUtils.jsm");
 Cu.import("resource://gre/modules/NetUtil.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
 
 const logsdir            = FileUtils.getDir("ProfD", ["weave", "logs"], true);
 const LOG_PREFIX_SUCCESS = "success-";
@@ -81,11 +82,16 @@ add_test(function test_logOnSuccess_false() {
 });
 
 function readFile(file, callback) {
-  NetUtil.asyncFetch(file, function (inputStream, statusCode, request) {
+  NetUtil.asyncFetch2(file, function (inputStream, statusCode, request) {
     let data = NetUtil.readInputStreamToString(inputStream,
                                                inputStream.available());
     callback(statusCode, data);
-  });
+  },
+  null,      // aLoadingNode
+  Services.scriptSecurityManager.getSystemPrincipal(),
+  null,      // aTriggeringPrincipal
+  Ci.nsILoadInfo.SEC_NORMAL,
+  Ci.nsIContentPolicy.TYPE_OTHER);
 }
 
 add_test(function test_logOnSuccess_true() {
diff --git a/services/sync/tps/extensions/tps/resource/modules/addons.jsm b/services/sync/tps/extensions/tps/resource/modules/addons.jsm
index 0da1d991430..5c308b5c2aa 100644
--- a/services/sync/tps/extensions/tps/resource/modules/addons.jsm
+++ b/services/sync/tps/extensions/tps/resource/modules/addons.jsm
@@ -20,7 +20,14 @@ const STATE_ENABLED = 1;
 const STATE_DISABLED = 2;
 
 function GetFileAsText(file) {
-  let channel = Services.io.newChannel(file, null, null);
+  let channel = Services.io.newChannel2(file,
+                                        null,
+                                        null,
+                                        null,      // aLoadingNode
+                                        Services.scriptSecurityManager.getSystemPrincipal(),
+                                        null,      // aTriggeringPrincipal
+                                        Ci.nsILoadInfo.SEC_NORMAL,
+                                        Ci.nsIContentPolicy.TYPE_OTHER);
   let inputStream = channel.open();
   if (channel instanceof Ci.nsIHttpChannel &&
       channel.responseStatus != 200) {