diff --git a/toolkit/mozapps/downloads/tests/browser/Makefile.in b/toolkit/mozapps/downloads/tests/browser/Makefile.in
index 75096185cf33..08b43322ffa2 100644
--- a/toolkit/mozapps/downloads/tests/browser/Makefile.in
+++ b/toolkit/mozapps/downloads/tests/browser/Makefile.in
@@ -45,10 +45,9 @@ relativesrcdir = toolkit/mozapps/downloads/tests/browser
 include $(DEPTH)/config/autoconf.mk
 include $(topsrcdir)/config/rules.mk
 
-# XXX this test currently fails on windows
-#_BROWSER_FILES = \
-#  browser_basic_functionality.js
-#  $(NULL)
+_BROWSER_FILES = \
+  browser_basic_functionality.js \
+  $(NULL)
 
-#libs:: $(_BROWSER_FILES)
-#	$(INSTALL) $(foreach f,$^,"$f") $(DEPTH)/_tests/testing/mochitest/browser/$(relativesrcdir)
+libs:: $(_BROWSER_FILES)
+	$(INSTALL) $(foreach f,$^,"$f") $(DEPTH)/_tests/testing/mochitest/browser/$(relativesrcdir)
diff --git a/toolkit/mozapps/downloads/tests/browser/browser_basic_functionality.js b/toolkit/mozapps/downloads/tests/browser/browser_basic_functionality.js
index 5cfc98b12100..a753c043d93c 100644
--- a/toolkit/mozapps/downloads/tests/browser/browser_basic_functionality.js
+++ b/toolkit/mozapps/downloads/tests/browser/browser_basic_functionality.js
@@ -35,39 +35,46 @@
  * 
  * ***** END LICENSE BLOCK ***** */
 
+var ios = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService);
+var dmFile = Cc["@mozilla.org/file/directory_service;1"].
+             getService(Ci.nsIProperties).get("TmpD", Ci.nsIFile);
+dmFile.append("dmuitest.file");
+dmFile.createUnique(Ci.nsIFile.NORMAL_FILE_TYPE, 0666);
+var gTestPath = ios.newFileURI(dmFile).spec;
+
 const DownloadData = [
   /* Active states first */
   { name: "381603.patch",
     source: "https://bugzilla.mozilla.org/attachment.cgi?id=266520",
-    target: "file:///Users/sdwilsh/Desktop/381603.patch",
+    target: gTestPath,
     startTime: 1180493839859230,
     endTime: 1180493839859239,
     state: Ci.nsIDownloadManager.DOWNLOAD_NOTSTARTED,
     currBytes: 0, maxBytes: -1, preferredAction: 0, autoResume: 0 },
   { name: "381603.patch",
     source: "https://bugzilla.mozilla.org/attachment.cgi?id=266520",
-    target: "file:///Users/sdwilsh/Desktop/381603.patch",
+    target: gTestPath,
     startTime: 1180493839859230,
     endTime: 1180493839859238,
     state: Ci.nsIDownloadManager.DOWNLOAD_DOWNLOADING,
     currBytes: 0, maxBytes: -1, preferredAction: 0, autoResume: 0 },
   { name: "381603.patch",
     source: "https://bugzilla.mozilla.org/attachment.cgi?id=266520",
-    target: "file:///Users/sdwilsh/Desktop/381603.patch",
+    target: gTestPath,
     startTime: 1180493839859230,
     endTime: 1180493839859237,
     state: Ci.nsIDownloadManager.DOWNLOAD_PAUSED,
     currBytes: 0, maxBytes: -1, preferredAction: 0, autoResume: 0 },
   { name: "381603.patch",
     source: "https://bugzilla.mozilla.org/attachment.cgi?id=266520",
-    target: "file:///Users/sdwilsh/Desktop/381603.patch",
+    target: gTestPath,
     startTime: 1180493839859230,
     endTime: 1180493839859236,
     state: Ci.nsIDownloadManager.DOWNLOAD_SCANNING,
     currBytes: 0, maxBytes: -1, preferredAction: 0, autoResume: 0 },
   { name: "381603.patch",
     source: "https://bugzilla.mozilla.org/attachment.cgi?id=266520",
-    target: "file:///Users/sdwilsh/Desktop/381603.patch",
+    target: gTestPath,
     startTime: 1180493839859230,
     endTime: 1180493839859235,
     state: Ci.nsIDownloadManager.DOWNLOAD_QUEUED,
@@ -75,35 +82,35 @@ const DownloadData = [
   /* Finished states */
   { name: "381603.patch",
     source: "https://bugzilla.mozilla.org/attachment.cgi?id=266520",
-    target: "file:///Users/sdwilsh/Desktop/381603.patch",
+    target: gTestPath,
     startTime: 1180493839859230,
     endTime: 1180493839859234,
     state: Ci.nsIDownloadManager.DOWNLOAD_FINISHED,
     currBytes: 0, maxBytes: -1, preferredAction: 0, autoResume: 0 },
   { name: "381603.patch",
     source: "https://bugzilla.mozilla.org/attachment.cgi?id=266520",
-    target: "file:///Users/sdwilsh/Desktop/381603.patch",
+    target: gTestPath,
     startTime: 1180493839859230,
     endTime: 1180493839859233,
     state: Ci.nsIDownloadManager.DOWNLOAD_FAILED,
     currBytes: 0, maxBytes: -1, preferredAction: 0, autoResume: 0 },
   { name: "381603.patch",
     source: "https://bugzilla.mozilla.org/attachment.cgi?id=266520",
-    target: "file:///Users/sdwilsh/Desktop/381603.patch",
+    target: gTestPath,
     startTime: 1180493839859230,
     endTime: 1180493839859232,
     state: Ci.nsIDownloadManager.DOWNLOAD_CANCELED,
     currBytes: 0, maxBytes: -1, preferredAction: 0, autoResume: 0 },
   { name: "381603.patch",
     source: "https://bugzilla.mozilla.org/attachment.cgi?id=266520",
-    target: "file:///Users/sdwilsh/Desktop/381603.patch",
+    target: gTestPath,
     startTime: 1180493839859230,
     endTime: 1180493839859231,
     state: Ci.nsIDownloadManager.DOWNLOAD_BLOCKED,
     currBytes: 0, maxBytes: -1, preferredAction: 0, autoResume: 0 },
   { name: "381603.patch",
     source: "https://bugzilla.mozilla.org/attachment.cgi?id=266520",
-    target: "file:///Users/sdwilsh/Desktop/381603.patch",
+    target: gTestPath,
     startTime: 1180493839859230,
     endTime: 1180493839859230,
     state: Ci.nsIDownloadManager.DOWNLOAD_DIRTY,