diff --git a/services/sync/modules/record.js b/services/sync/modules/record.js
index d078f12128c..c76e76380b2 100644
--- a/services/sync/modules/record.js
+++ b/services/sync/modules/record.js
@@ -88,8 +88,11 @@ WBORecord.prototype = {
   // Take a base URI string, with trailing slash, and return the URI of this
   // WBO based on collection and ID.
   uri: function(base) {
-    if (this.collection && this.id)
-      return Utils.makeURL(base + this.collection + "/" + this.id);
+    if (this.collection && this.id) {
+      let url = Utils.makeURI(base + this.collection + "/" + this.id);
+      url.QueryInterface(Ci.nsIURL);
+      return url;
+    }
     return null;
   },
 
diff --git a/services/sync/modules/util.js b/services/sync/modules/util.js
index efe7ee09d90..0c46457b8ab 100644
--- a/services/sync/modules/util.js
+++ b/services/sync/modules/util.js
@@ -207,28 +207,6 @@ let Utils = {
     return !!guid && this._base64url_regex.test(guid);
   },
 
-  ensureOneOpen: let (windows = {}) function ensureOneOpen(window) {
-    // Close the other window if it exists
-    let url = window.location.href;
-    let other = windows[url];
-    if (other != null)
-      other.close();
-
-    // Save the new window for future closure
-    windows[url] = window;
-
-    // Actively clean up when the window is closed
-    window.addEventListener("unload", function() windows[url] = null, false);
-  },
-
-  // Returns a nsILocalFile representing a file relative to the current
-  // user's profile directory.  The argument should be a string with
-  // unix-style slashes for directory names (these slashes are automatically
-  // converted to platform-specific path separators).
-  getProfileFile: function getProfileFile(path) {
-    return FileUtils.getFile("ProfD", path.split("/"), true);
-  },
-
   /**
    * Add a simple getter/setter to an object that defers access of a property
    * to an inner property.
@@ -292,70 +270,46 @@ let Utils = {
     return true;
   },
 
-  deepCopy: function Weave_deepCopy(thing, noSort) {
-    if (typeof(thing) != "object" || thing == null)
-      return thing;
-    let ret;
-
-    if (Array.isArray(thing)) {
-      ret = [];
-      for (let i = 0; i < thing.length; i++)
-        ret.push(Utils.deepCopy(thing[i], noSort));
-
-    } else {
-      ret = {};
-      let props = [p for (p in thing)];
-      if (!noSort)
-        props = props.sort();
-      props.forEach(function(k) ret[k] = Utils.deepCopy(thing[k], noSort));
-    }
-
-    return ret;
-  },
-
-  // Works on frames or exceptions, munges file:// URIs to shorten the paths
-  // FIXME: filename munging is sort of hackish, might be confusing if
-  // there are multiple extensions with similar filenames
-  formatFrame: function Utils_formatFrame(frame) {
-    let tmp = "<file:unknown>";
-
-    let file = frame.filename || frame.fileName;
-    if (file)
-      tmp = file.replace(/^(?:chrome|file):.*?([^\/\.]+\.\w+)$/, "$1");
-
-    if (frame.lineNumber)
-      tmp += ":" + frame.lineNumber;
-    if (frame.name)
-      tmp = frame.name + "()@" + tmp;
-
-    return tmp;
-  },
-
   exceptionStr: function Weave_exceptionStr(e) {
     let message = e.message ? e.message : e;
     return message + " " + Utils.stackTrace(e);
   },
-
-  stackTraceFromFrame: function Weave_stackTraceFromFrame(frame) {
-    let output = [];
-    while (frame) {
-      let str = Utils.formatFrame(frame);
-      if (str)
-        output.push(str);
-      frame = frame.caller;
-    }
-    return output.join(" < ");
-  },
-
+  
   stackTrace: function Weave_stackTrace(e) {
     // Wrapped nsIException
-    if (e.location)
-      return "Stack trace: " + Utils.stackTraceFromFrame(e.location);
+    if (e.location){
+      let frame = e.location; 
+      let output = [];
+      while (frame) {
+      	// Works on frames or exceptions, munges file:// URIs to shorten the paths
+        // FIXME: filename munging is sort of hackish, might be confusing if
+        // there are multiple extensions with similar filenames
+        let str = "<file:unknown>";
 
+        let file = frame.filename || frame.fileName;
+        if (file){
+          str = file.replace(/^(?:chrome|file):.*?([^\/\.]+\.\w+)$/, "$1");
+        }
+
+        if (frame.lineNumber){
+          str += ":" + frame.lineNumber;
+        }
+        if (frame.name){
+          str = frame.name + "()@" + str;
+        }
+
+        if (str){
+          output.push(str);
+        }
+        frame = frame.caller;
+      }
+      return "Stack trace: " + output.join(" < ");
+    }
     // Standard JS exception
-    if (e.stack)
+    if (e.stack){
       return "JS Stack trace: " + e.stack.trim().replace(/\n/g, " < ").
         replace(/@[^@]*?([^\/\.]+\.\w+:)/g, "@$1");
+    }
 
     return "No traceback available";
   },
@@ -891,12 +845,6 @@ let Utils = {
     }
   },
 
-  makeURL: function Weave_makeURL(URIString) {
-    let url = Utils.makeURI(URIString);
-    url.QueryInterface(Ci.nsIURL);
-    return url;
-  },
-
   /**
    * Load a json object from disk
    *
@@ -912,7 +860,7 @@ let Utils = {
     if (that._log)
       that._log.trace("Loading json from disk: " + filePath);
 
-    let file = Utils.getProfileFile(filePath);
+    let file = FileUtils.getFile("ProfD", filePath.split("/"), true);
     if (!file.exists()) {
       callback.call(that);
       return;
@@ -957,7 +905,7 @@ let Utils = {
     if (that._log)
       that._log.trace("Saving json to disk: " + filePath);
 
-    let file = Utils.getProfileFile(filePath);
+    let file = FileUtils.getFile("ProfD", filePath.split("/"), true);
     let json = typeof obj == "function" ? obj.call(that) : obj;
     let out = JSON.stringify(json);
 
diff --git a/services/sync/tests/unit/head_helpers.js b/services/sync/tests/unit/head_helpers.js
index cee2ec034ed..09e9d8878ff 100644
--- a/services/sync/tests/unit/head_helpers.js
+++ b/services/sync/tests/unit/head_helpers.js
@@ -456,3 +456,26 @@ RotaryEngine.prototype = {
     }
   }
 };
+
+deepCopy: function deepCopy(thing, noSort) {
+  if (typeof(thing) != "object" || thing == null){
+    return thing;
+  }
+  let ret;
+
+  if (Array.isArray(thing)) {
+    ret = [];
+    for (let i = 0; i < thing.length; i++){
+      ret.push(deepCopy(thing[i], noSort));
+	}
+  } else {
+    ret = {};
+    let props = [p for (p in thing)];
+    if (!noSort){
+      props = props.sort();
+    }
+    props.forEach(function(k) ret[k] = deepCopy(thing[k], noSort));
+  }
+
+  return ret;
+};
\ No newline at end of file
diff --git a/services/sync/tests/unit/test_bookmark_livemarks.js b/services/sync/tests/unit/test_bookmark_livemarks.js
index dabcf91af26..db69d50fe35 100644
--- a/services/sync/tests/unit/test_bookmark_livemarks.js
+++ b/services/sync/tests/unit/test_bookmark_livemarks.js
@@ -56,7 +56,7 @@ store.wipe();
 function makeLivemark(p, mintGUID) {
   let b = new Livemark("bookmarks", p.id);
   // Copy here, because tests mutate the contents.
-  b.cleartext = Utils.deepCopy(p);
+  b.cleartext = deepCopy(p);
   
   if (mintGUID)
     b.id = Utils.makeGUID();
diff --git a/services/sync/tests/unit/test_resource.js b/services/sync/tests/unit/test_resource.js
index 2663a761fc6..88aa67124a7 100644
--- a/services/sync/tests/unit/test_resource.js
+++ b/services/sync/tests/unit/test_resource.js
@@ -495,8 +495,10 @@ function run_test() {
 
   let query = "?" + args.join("&");
 
-  let uri1 = Utils.makeURL("http://foo/" + query);
-  let uri2 = Utils.makeURL("http://foo/");
+  let uri1 = Utils.makeURI("http://foo/" + query)
+                  .QueryInterface(Ci.nsIURL);
+  let uri2 = Utils.makeURI("http://foo/")
+                  .QueryInterface(Ci.nsIURL);
   uri2.query = query;
   do_check_eq(uri1.query, uri2.query);
   server.stop(do_test_finished);
diff --git a/services/sync/tests/unit/test_resource_async.js b/services/sync/tests/unit/test_resource_async.js
index 423ada72b24..582d3a43fb5 100644
--- a/services/sync/tests/unit/test_resource_async.js
+++ b/services/sync/tests/unit/test_resource_async.js
@@ -661,8 +661,10 @@ add_test(function test_uri_construction() {
 
   let query = "?" + args.join("&");
 
-  let uri1 = Utils.makeURL("http://foo/" + query);
-  let uri2 = Utils.makeURL("http://foo/");
+  let uri1 = Utils.makeURI("http://foo/" + query)
+                  .QueryInterface(Ci.nsIURL);
+  let uri2 = Utils.makeURI("http://foo/")
+                  .QueryInterface(Ci.nsIURL);
   uri2.query = query;
   do_check_eq(uri1.query, uri2.query);
 
diff --git a/services/sync/tests/unit/test_tab_store.js b/services/sync/tests/unit/test_tab_store.js
index 34f0375bfa8..26219027146 100644
--- a/services/sync/tests/unit/test_tab_store.js
+++ b/services/sync/tests/unit/test_tab_store.js
@@ -80,7 +80,7 @@ function fakeSessionSvc(url, numtabs) {
       if (numtabs) {
         let tabs = obj.windows[0].tabs;
         for (let i = 0; i < numtabs-1; i++)
-          tabs.push(Utils.deepCopy(tabs[0]));
+          tabs.push(deepCopy(tabs[0]));
       }
       return JSON.stringify(obj);
     }
diff --git a/services/sync/tests/unit/test_utils_deepCopy.js b/services/sync/tests/unit/test_utils_deepCopy.js
index 70d4791d3f7..54454097e74 100644
--- a/services/sync/tests/unit/test_utils_deepCopy.js
+++ b/services/sync/tests/unit/test_utils_deepCopy.js
@@ -2,7 +2,7 @@ Cu.import("resource://services-sync/util.js");
 
 function run_test() {
   let thing = {o: {foo: "foo", bar: ["bar"]}, a: ["foo", {bar: "bar"}]};
-  let ret = Utils.deepCopy(thing);
+  let ret = deepCopy(thing);
   do_check_neq(ret, thing)
   do_check_neq(ret.o, thing.o);
   do_check_neq(ret.o.bar, thing.o.bar);
diff --git a/services/sync/tests/unit/test_utils_json.js b/services/sync/tests/unit/test_utils_json.js
index 5a1d4914f89..264dacceed7 100644
--- a/services/sync/tests/unit/test_utils_json.js
+++ b/services/sync/tests/unit/test_utils_json.js
@@ -69,7 +69,8 @@ add_test(function test_load_logging() {
   _("Verify that reads and read errors are logged.");
 
   // Write a file with some invalid JSON
-  let file = Utils.getProfileFile("weave/log.json");
+  let filePath = "weave/log.json";
+  let file = FileUtils.getFile("ProfD", filePath.split("/"), true);
   let fos = Cc["@mozilla.org/network/file-output-stream;1"]
               .createInstance(Ci.nsIFileOutputStream);
   let flags = FileUtils.MODE_WRONLY | FileUtils.MODE_CREATE
diff --git a/services/sync/tests/unit/test_utils_makeURI.js b/services/sync/tests/unit/test_utils_makeURI.js
index a7a94d48eda..a99d29a959b 100644
--- a/services/sync/tests/unit/test_utils_makeURI.js
+++ b/services/sync/tests/unit/test_utils_makeURI.js
@@ -65,35 +65,3 @@ function _test_makeURI() {
   do_check_eq(Utils.makeURI("chrome://badstuff"), undefined);
   do_check_eq(Utils.makeURI("this is a test"), undefined);
 }
-
-function _test_makeURL() {
-  _("Check http uri");
-  let uri = "http://mozillalabs.com/";
-  do_check_true(Utils.makeURL(uri) instanceof Ci.nsIURL);
-
-  _("Check https uri");
-  let uris = "https://mozillalabs.com/";
-  do_check_true(Utils.makeURL(uris) instanceof Ci.nsIURL);
-
-  let uric = "chrome://browser/content/browser.xul";
-  do_check_true(Utils.makeURL(uric) instanceof Ci.nsIURL);
-
-  _("Check about uri");
-  let uria = "about:weave";
-  let except1;
-  try {
-    Utils.makeURL(uria);
-  } catch(e) {
-    except1 = e;
-  }
-  do_check_true(!!except1);
-
-  _("Check invalid uri");
-  let except2;
-  try {
-    Utils.makeURL("mozillalabs.com");
-  } catch(e) {
-    except2 = e;
-  }
-  do_check_true(!!except2);
-}