diff --git a/lib/sdk/console/traceback.js b/lib/sdk/console/traceback.js
index 93e387b25..6e85a8db3 100644
--- a/lib/sdk/console/traceback.js
+++ b/lib/sdk/console/traceback.js
@@ -9,10 +9,10 @@ module.metadata = {
 };
 
 const { Cc, Ci, components } = require("chrome");
-const { parseStack, sourceURI } = require("toolkit/loader");
+const { parseStack, parseURI } = require("../../toolkit/stack-utils");
 const { readURISync } = require("../net/url");
 
-exports.sourceURI = sourceURI
+exports.sourceURI = parseURI;
 
 function safeGetFileLine(path, line) {
   try {
@@ -31,7 +31,7 @@ function nsIStackFramesToJSON(frame) {
   while (frame) {
     if (frame.filename) {
       stack.unshift({
-        fileName: sourceURI(frame.filename),
+        fileName: parseURI(frame.filename),
         lineNumber: frame.lineNumber,
         name: frame.name
       });
@@ -48,7 +48,7 @@ var fromException = exports.fromException = function fromException(e) {
   if (e.stack && e.stack.length)
     return parseStack(e.stack);
   if (e.fileName && typeof(e.lineNumber == "number"))
-    return [{fileName: sourceURI(e.fileName),
+    return [{fileName: parseURI(e.fileName),
              lineNumber: e.lineNumber,
              name: null}];
   return [];
diff --git a/lib/sdk/test/harness.js b/lib/sdk/test/harness.js
index fc0f55df2..46752f174 100644
--- a/lib/sdk/test/harness.js
+++ b/lib/sdk/test/harness.js
@@ -9,7 +9,7 @@ module.metadata = {
 
 const { Cc, Ci, Cu } = require("chrome");
 const { Loader } = require('./loader');
-const { serializeStack, parseStack  } = require("toolkit/loader");
+const { parseStack, serializeStack } = require("../../toolkit/stack-utils");
 const { setTimeout } = require('../timers');
 const { PlainTextConsole } = require("../console/plain-text");
 const { when: unload } = require("../system/unload");
diff --git a/lib/toolkit/loader.js b/lib/toolkit/loader.js
index 5d8ef13b9..698b57f37 100644
--- a/lib/toolkit/loader.js
+++ b/lib/toolkit/loader.js
@@ -42,6 +42,8 @@ const { NetUtil } = Cu.import("resource://gre/modules/NetUtil.jsm", {});
 const { Reflect } = Cu.import("resource://gre/modules/reflect.jsm", {});
 const { console } = Cu.import("resource://gre/modules/devtools/Console.jsm");
 const { join: pathJoin, normalize, dirname } = Cu.import("resource://gre/modules/osfile/ospath_unix.jsm");
+const toolkitURI = module.uri.replace(/loader\.js$/, "");
+const { parseStack, serializeStack, parseURI } = Cu.import(toolkitURI + "/stack-utils.js", {}).stackUtils;
 
 // Define some shortcuts.
 const bind = Function.call.bind(Function.bind);
@@ -126,41 +128,13 @@ const override = iced(function override(target, source) {
 });
 exports.override = override;
 
-function sourceURI(uri) { return String(uri).split(" -> ").pop(); }
-exports.sourceURI = iced(sourceURI);
+// Export stack utils
+exports.parseStack = iced(parseStack);
+exports.serializeStack= iced(serializeStack);
+exports.sourceURI = iced(parseURI);
 
 function isntLoaderFrame(frame) { return frame.fileName !== module.uri }
 
-var parseStack = iced(function parseStack(stack) {
-  let lines = String(stack).split("\n");
-  return lines.reduce(function(frames, line) {
-    if (line) {
-      let atIndex = line.indexOf("@");
-      let columnIndex = line.lastIndexOf(":");
-      let fileName = sourceURI(line.slice(atIndex + 1, columnIndex));
-      let lineNumber = parseInt(line.slice(columnIndex + 1));
-      let name = line.slice(0, atIndex).split("(").shift();
-      frames.unshift({
-        fileName: fileName,
-        name: name,
-        lineNumber: lineNumber
-      });
-    }
-    return frames;
-  }, []);
-})
-exports.parseStack = parseStack
-
-var serializeStack = iced(function serializeStack(frames) {
-  return frames.reduce(function(stack, frame) {
-    return frame.name + "@" +
-           frame.fileName + ":" +
-           frame.lineNumber + "\n" +
-           stack;
-  }, "");
-})
-exports.serializeStack = serializeStack
-
 function readURI(uri) {
   let stream = NetUtil.newChannel(uri, 'UTF-8', null).open();
   let count = stream.available();
@@ -302,7 +276,7 @@ const load = iced(function load(loader, module) {
     let stack = error.stack || Error().stack;
     let frames = parseStack(stack).filter(isntLoaderFrame);
     let toString = String(error);
-    let file = sourceURI(fileName);
+    let file = parseURI(fileName);
 
     // Note that `String(error)` where error is from subscript loader does
     // not puts `:` after `"Error"` unlike regular errors thrown by JS code.
diff --git a/lib/toolkit/stack-utils.js b/lib/toolkit/stack-utils.js
new file mode 100644
index 000000000..a0c6dc2da
--- /dev/null
+++ b/lib/toolkit/stack-utils.js
@@ -0,0 +1,67 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+;(function(id, factory) { // Module boilerplate :(
+  if (typeof(define) === "function") { // RequireJS
+    define(factory);
+  } else if (typeof(require) === "function") { // CommonJS
+    factory.call(this, require, exports, module);
+  } else if (~String(this).indexOf("BackstagePass")) { // JSM
+    this[factory.name] = {};
+    factory(function require(uri) {
+      var imports = {};
+      this["Components"].utils.import(uri, imports);
+      return imports;
+    }, this[factory.name], { uri: __URI__, id: id });
+    this.EXPORTED_SYMBOLS = [factory.name];
+  } else if (~String(this).indexOf("Sandbox")) { // Sandbox
+    factory(function require(uri) {}, this, { uri: __URI__, id: id });
+  } else {  // Browser or alike
+    var globals = this
+    factory(function require(id) {
+      return globals[id];
+    }, (globals[id] = {}), { uri: document.location.href + "#" + id, id: id });
+  }
+}).call(this, "stackUtils", function stackUtils (require, exports, module) {
+
+"use strict";
+
+module.metadata = {
+  "stability": "unstable"
+};
+
+function parseURI(uri) { return String(uri).split(" -> ").pop(); }
+exports.parseURI = parseURI;
+
+function parseStack(stack) {
+  let lines = String(stack).split("\n");
+  return lines.reduce(function(frames, line) {
+    if (line) {
+      let atIndex = line.indexOf("@");
+      let columnIndex = line.lastIndexOf(":");
+      let fileName = parseURI(line.slice(atIndex + 1, columnIndex));
+      let lineNumber = parseInt(line.slice(columnIndex + 1));
+      let name = line.slice(0, atIndex).split("(").shift();
+      frames.unshift({
+        fileName: fileName,
+        name: name,
+        lineNumber: lineNumber
+      });
+    }
+    return frames;
+  }, []);
+}
+exports.parseStack = parseStack;
+
+function serializeStack(frames) {
+  return frames.reduce(function(stack, frame) {
+    return frame.name + "@" +
+           frame.fileName + ":" +
+           frame.lineNumber + "\n" +
+           stack;
+  }, "");
+}
+exports.serializeStack = serializeStack;
+
+});