diff --git a/toolkit/components/downloads/test/unit/test_sleep_wake.js b/toolkit/components/downloads/test/unit/test_sleep_wake.js
index d0d6b872327d..5069e89e9219 100644
--- a/toolkit/components/downloads/test/unit/test_sleep_wake.js
+++ b/toolkit/components/downloads/test/unit/test_sleep_wake.js
@@ -39,6 +39,12 @@
  * wake notifications by pausing and resuming downloads.
  */
 
+/**
+ * Used to indicate if we should error out or not.  See bug 431745 for more
+ * details.
+ */
+let doNotError = false;
+
 const nsIF = Ci.nsIFile;
 const nsIDM = Ci.nsIDownloadManager;
 const nsIWBP = Ci.nsIWebBrowserPersist;
@@ -61,7 +67,6 @@ function run_test()
   Cc["@mozilla.org/preferences-service;1"].
   getService(Ci.nsIPrefBranch).
   setIntPref("browser.download.manager.resumeOnWakeDelay", 1000);
-dump("%%%Set pref\n");
 
   /**
    * 1. Create data for http server to send
@@ -71,7 +76,6 @@ dump("%%%Set pref\n");
   // data * 10^4 = 100,000 bytes (actually 101,111 bytes with newline)
   for (let i = 0; i < 4; i++)
     data = [data,data,data,data,data,data,data,data,data,data,"\n"].join("");
-dump("%%%Generated data\n");
 
   /**
    * 2. Start the http server that can handle resume
@@ -88,14 +92,11 @@ dump("%%%Generated data\n");
       let matches = meta.getHeader("Range").match(/^\s*bytes=(\d+)?-(\d+)?\s*$/);
       let from = (matches[1] === undefined) ? 0 : matches[1];
       let to = (matches[2] === undefined) ? data.length - 1 : matches[2];
-      dump("%%%meta.getHeader('Range'): " + meta.getHeader("Range") + "\n");
-      dump("%%%from: " + from + "\n");
-      dump("%%%to: " + to + "\n");
-      dump("%%%data.length: " + data.length + "\n");
       if (from >= data.length) {
         resp.setStatusLine(meta.httpVersion, 416, "Start pos too high");
         resp.setHeader("Content-Range", "*/" + data.length);
-dump("%%% Returning early - from >= data.length\n");
+        dump("Returning early - from >= data.length.  Not an error (bug 431745)\n");
+        doNotError = true;
         return;
       }
       body = body.substring(from, to + 1);
@@ -106,7 +107,6 @@ dump("%%% Returning early - from >= data.length\n");
     resp.bodyOutputStream.write(body, body.length);
   });
   httpserv.start(4444);
-dump("%%%Started server\n");
 
   /**
    * 3. Perform various actions for certain download states
@@ -115,21 +115,17 @@ dump("%%%Started server\n");
   let didResumeDownload = false;
   dm.addListener({
     onDownloadStateChange: function(a, aDl) {
-dump("%%%onDownloadStateChange\n");
       if (aDl.state == nsIDM.DOWNLOAD_DOWNLOADING && !didPause) {
-dump("%%%aDl.state: DOWNLOAD_DOWNLOADING\n");
         /**
          * (1) queued -> downloading = pause the download with sleep
          */
         notify("sleep_notification");
       } else if (aDl.state == nsIDM.DOWNLOAD_PAUSED) {
-dump("%%%aDl.state: DOWNLOAD_PAUSED\n");
         /**
          * (2) downloading -> paused
          */
         didPause = true;
       } else if (aDl.state == nsIDM.DOWNLOAD_FINISHED) {
-dump("%%%aDl.state: DOWNLOAD_FINISHED\n");
         /**
          * (4) downloading (resumed) -> finished = check tests
          */
@@ -144,13 +140,16 @@ dump("%%%aDl.state: DOWNLOAD_FINISHED\n");
         aDl.targetFile.remove(false);
         // we're done with the test!
         do_test_finished();
-      } else
-        dump("%%%aDl.state: " + aDl.state + "\n");
+      }
+      else if (aDl.state == nsIDM.DOWNLOAD_FAILED) {
+        // this is only ok if we are not supposed to fail
+        do_check_true(doNotError);
+        httpserv.stop();
+        // we're done with the test!
+        do_test_finished();
+      }
     },
     onStateChange: function(a, b, aState, d, aDl) {
-dump("%%%onStateChange\n");
-dump("%%%aState: " + aState + "\n");
-dump("%%%status: " + d + "\n");
       if ((aState & nsIWPL.STATE_STOP) && didPause && !didResumeServer &&
           !didResumeDownload) {
         /**
@@ -164,7 +163,6 @@ dump("%%%status: " + d + "\n");
     onSecurityChange: function(a, b, c, d) { }
   });
   dm.addListener(getDownloadListener());
-dump("%%%Added listener\n");
 
   /**
    * 4. Start the download
@@ -185,5 +183,4 @@ dump("%%%Added listener\n");
 
   // Mark as pending, so clear this when we actually finish the download
   do_test_pending();
-dump("%%%Started test\n");
 }
diff --git a/tools/test-harness/xpcshell-simple/test_all.sh b/tools/test-harness/xpcshell-simple/test_all.sh
index 6fca19d2e366..4664bec58fcc 100755
--- a/tools/test-harness/xpcshell-simple/test_all.sh
+++ b/tools/test-harness/xpcshell-simple/test_all.sh
@@ -111,11 +111,7 @@ done
 for t in $testdir/test_*.js
 do
     echo -n "$t: "
-    if [ `echo $t | grep -c 'test_sleep_wake.js'` != 0 ]
-    then
-      NATIVE_TOPSRCDIR="$native_topsrcdir" TOPSRCDIR="$topsrcdir" NSPR_LOG_MODULES="nsHttp:5" $xpcshell -s $headfiles -f $t $tailfiles
-    else
-      NATIVE_TOPSRCDIR="$native_topsrcdir" TOPSRCDIR="$topsrcdir" $xpcshell -s $headfiles -f $t $tailfiles 2> $t.log 1>&2
+    NATIVE_TOPSRCDIR="$native_topsrcdir" TOPSRCDIR="$topsrcdir" $xpcshell -s $headfiles -f $t $tailfiles 2> $t.log 1>&2
     fi
     rv="$?"
     if [ ! "$rv" = "0"  -o \