diff --git a/content/media/video/public/nsChannelToPipeListener.h b/content/media/video/public/nsChannelToPipeListener.h
index 167d3b58bb77..6be1d8e7b704 100644
--- a/content/media/video/public/nsChannelToPipeListener.h
+++ b/content/media/video/public/nsChannelToPipeListener.h
@@ -67,9 +67,7 @@ class nsChannelToPipeListener : public nsIStreamListener
   NS_DECL_NSISTREAMLISTENER
 
   public:
-  // If aSeeking is PR_TRUE then this listener was created as part of a
-  // seek request and is expecting a byte range partial result.
-  nsChannelToPipeListener(nsMediaDecoder* aDecoder, PRBool aSeeking = PR_FALSE);
+  nsChannelToPipeListener(nsMediaDecoder* aDecoder);
   nsresult Init();
   nsresult GetInputStream(nsIInputStream** aStream);
   void Stop();
@@ -97,9 +95,6 @@ private:
 
   // Total bytes transferred so far
   PRInt64 mTotalBytes;
-
-  // PR_TRUE if this listener is expecting a byte range request result
-  PRPackedBool mSeeking;
 };
 
 #endif
diff --git a/content/media/video/public/nsMediaDecoder.h b/content/media/video/public/nsMediaDecoder.h
index cd48cc912ebb..6d510eec5a04 100644
--- a/content/media/video/public/nsMediaDecoder.h
+++ b/content/media/video/public/nsMediaDecoder.h
@@ -142,12 +142,6 @@ class nsMediaDecoder : public nsIObserver
   // Set the size of the video file in bytes.
   virtual void SetTotalBytes(PRInt64 aBytes) = 0;
 
-  // Set a flag indicating whether seeking is supported
-  virtual void SetSeekable(PRBool aSeekable) = 0;
-
-  // Return PR_TRUE if seeking is supported.
-  virtual PRBool GetSeekable() = 0;
-
   // Called when the HTML DOM element is bound.
   virtual void ElementAvailable(nsHTMLMediaElement* anElement);
 
diff --git a/content/media/video/public/nsOggDecoder.h b/content/media/video/public/nsOggDecoder.h
index 716682eea710..606c0361b1e5 100644
--- a/content/media/video/public/nsOggDecoder.h
+++ b/content/media/video/public/nsOggDecoder.h
@@ -338,12 +338,6 @@ class nsOggDecoder : public nsMediaDecoder
   // Get the size of the media file in bytes. Called on the main thread only.
   virtual void SetTotalBytes(PRInt64 aBytes);
 
-  // Set a flag indicating whether seeking is supported
-  virtual void SetSeekable(PRBool aSeekable);
-
-  // Return PR_TRUE if seeking is supported.
-  virtual PRBool GetSeekable();
-
 protected:
   // Change to a new play state. This updates the mState variable and
   // notifies any thread blocking on this objects monitor of the
@@ -455,10 +449,6 @@ private:
   // True if we are registered with the observer service for shutdown.
   PRPackedBool mNotifyOnShutdown;
 
-  // True if the media resource is seekable (server supports byte range
-  // requests).
-  PRPackedBool mSeekable;
-
   /******
    * The following member variables can be accessed from any thread.
    ******/
diff --git a/content/media/video/src/nsChannelToPipeListener.cpp b/content/media/video/src/nsChannelToPipeListener.cpp
index 4a0f0c6fb427..2834402c4853 100644
--- a/content/media/video/src/nsChannelToPipeListener.cpp
+++ b/content/media/video/src/nsChannelToPipeListener.cpp
@@ -42,17 +42,11 @@
 #include "nsChannelToPipeListener.h"
 #include "nsICachingChannel.h"
 
-#define HTTP_OK_CODE 200
-#define HTTP_PARTIAL_RESPONSE_CODE 206
-
-nsChannelToPipeListener::nsChannelToPipeListener(
-    nsMediaDecoder* aDecoder,
-    PRBool aSeeking) :
+nsChannelToPipeListener::nsChannelToPipeListener(nsMediaDecoder* aDecoder) :
   mDecoder(aDecoder),
   mIntervalStart(0),
   mIntervalEnd(0),
-  mTotalBytes(0),
-  mSeeking(aSeeking)
+  mTotalBytes(0)
 {
 }
 
@@ -104,25 +98,10 @@ nsresult nsChannelToPipeListener::OnStartRequest(nsIRequest* aRequest, nsISuppor
   if (hc) {
     PRUint32 responseStatus = 0; 
     hc->GetResponseStatus(&responseStatus);
-    if (mSeeking && responseStatus == HTTP_OK_CODE) {
-      // If we get an OK response but we were seeking,
-      // and therefore expecting a partial response of
-      // HTTP_PARTIAL_RESPONSE_CODE, tell the decoder
-      // we don't support seeking.
-      mDecoder->SetSeekable(PR_FALSE);
-    }
-    else if (!mSeeking && 
-             (responseStatus == HTTP_OK_CODE ||
-              responseStatus == HTTP_PARTIAL_RESPONSE_CODE)) {
-      // We weren't seeking and got a valid response status,
-      // set the length of the content.
+    if (responseStatus == 200) {
       PRInt32 cl = 0;
       hc->GetContentLength(&cl);
       mDecoder->SetTotalBytes(cl);
-
-      // If we get an HTTP_OK_CODE response to our byte range
-      // request, then we don't support seeking.
-      mDecoder->SetSeekable(responseStatus == HTTP_PARTIAL_RESPONSE_CODE);
     }
   }
 
diff --git a/content/media/video/src/nsMediaStream.cpp b/content/media/video/src/nsMediaStream.cpp
index 0c0f3773fbd9..e9b874e3f19d 100644
--- a/content/media/video/src/nsMediaStream.cpp
+++ b/content/media/video/src/nsMediaStream.cpp
@@ -425,16 +425,6 @@ nsresult nsHttpStreamStrategy::Open(nsIStreamListener **aStreamListener)
     *aStreamListener = mListener;
     NS_ADDREF(*aStreamListener);
   } else {
-    // Use a byte range request from the start of the resource.
-    // This enables us to detect if the stream supports byte range
-    // requests, and therefore seeking, early.
-    nsCOMPtr<nsIHttpChannel> hc = do_QueryInterface(mChannel);
-    if (hc) {
-      hc->SetRequestHeader(NS_LITERAL_CSTRING("Range"),
-          NS_LITERAL_CSTRING("bytes=0-"),
-          PR_FALSE);
-    }
- 
     rv = mChannel->AsyncOpen(mListener, nsnull);
     NS_ENSURE_SUCCESS(rv, rv);
   }
@@ -535,7 +525,7 @@ public:
       hc->SetRequestHeader(NS_LITERAL_CSTRING("Range"), rangeString, PR_FALSE);
     }
 
-    mListener = new nsChannelToPipeListener(mDecoder, PR_TRUE);
+    mListener = new nsChannelToPipeListener(mDecoder);
     NS_ENSURE_TRUE(mListener, NS_ERROR_OUT_OF_MEMORY);
 
     mResult = mListener->Init();
diff --git a/content/media/video/src/nsOggDecoder.cpp b/content/media/video/src/nsOggDecoder.cpp
index 83cec8becc78..3476def63b1a 100644
--- a/content/media/video/src/nsOggDecoder.cpp
+++ b/content/media/video/src/nsOggDecoder.cpp
@@ -35,7 +35,6 @@
  * the terms of any one of the MPL, the GPL or the LGPL.
  *
  * ***** END LICENSE BLOCK ***** */
-#include <limits>
 #include "prlog.h"
 #include "prmem.h"
 #include "nsIFrame.h"
@@ -268,18 +267,6 @@ public:
   // monitor must be obtained before calling this.
   float GetCurrentTime();
 
-  // Called from the main thread to get the duration. The decoder monitor
-  // must be obtained before calling this. It is in units of milliseconds.
-  PRInt64 GetDuration();
-
-  // Called from the main thread to set the content length of the media
-  // resource. The decoder monitor must be obtained before calling this.
-  void SetContentLength(PRInt64 aLength);
-
-  // Called from the main thread to set whether the media resource can
-  // be seeked. The decoder monitor must be obtained before calling this.
-  void SetSeekable(PRBool aSeekable);
-
   // Get and set the audio volume. The decoder monitor must be
   // obtained before calling this.
   float GetVolume();
@@ -440,20 +427,6 @@ private:
   // monitor.
   float mVolume;
 
-  // Duration of the media resource. It is accessed from the decoder and main
-  // threads. Synchronised via decoder monitor. It is in units of
-  // milliseconds.
-  PRInt64 mDuration;
-
-  // Content Length of the media resource if known. If it is -1 then the
-  // size is unknown. Accessed from the decoder and main threads. Synchronised
-  // via decoder monitor.
-  PRInt64 mContentLength;
-
-  // PR_TRUE if the media resource can be seeked. Accessed from the decoder
-  // and main threads. Synchronised via decoder monitor.
-  PRPackedBool mSeekable;
-
   // PR_TRUE if an event to notify about a change in the playback
   // position has been queued, but not yet run. It is set to PR_FALSE when
   // the event is run. This allows coalescing of these events as they can be
@@ -482,9 +455,6 @@ nsOggDecodeStateMachine::nsOggDecodeStateMachine(nsOggDecoder* aDecoder, nsChann
   mSeekTime(0.0),
   mCurrentFrameTime(0.0),
   mVolume(1.0),
-  mDuration(-1),
-  mContentLength(-1),
-  mSeekable(PR_TRUE),
   mPositionChangeQueued(PR_FALSE)
 {
 }
@@ -803,23 +773,6 @@ float nsOggDecodeStateMachine::GetCurrentTime()
   return mCurrentFrameTime;
 }
 
-PRInt64 nsOggDecodeStateMachine::GetDuration()
-{
-  //  NS_ASSERTION(PR_InMonitor(mDecoder->GetMonitor()), "GetDuration() called without acquiring decoder monitor");
-  return mDuration;
-}
-
-void nsOggDecodeStateMachine::SetContentLength(PRInt64 aLength)
-{
-  //  NS_ASSERTION(PR_InMonitor(mDecoder->GetMonitor()), "SetContentLength() called without acquiring decoder monitor");
-  mContentLength = aLength;
-}
-
-void nsOggDecodeStateMachine::SetSeekable(PRBool aSeekable)
-{
-   //  NS_ASSERTION(PR_InMonitor(mDecoder->GetMonitor()), "SetSeekable() called without acquiring decoder monitor");
-  mSeekable = aSeekable;
-}
 
 void nsOggDecodeStateMachine::Shutdown()
 {
@@ -1091,12 +1044,12 @@ void nsOggDecodeStateMachine::LoadOggHeaders()
         oggplay_get_audio_channels(mPlayer, i, &mAudioChannels);
         LOG(PR_LOG_DEBUG, ("samplerate: %d, channels: %d", mAudioRate, mAudioChannels));
       }
- 
+      
       if (oggplay_set_track_active(mPlayer, i) < 0)  {
         LOG(PR_LOG_ERROR, ("Could not set track %d active", i));
       }
     }
-
+    
     if (mVideoTrack == -1) {
       oggplay_set_callback_num_frames(mPlayer, mAudioTrack, OGGPLAY_FRAMES_PER_CALLBACK);
       mCallbackPeriod = 1.0 / (float(mAudioRate) / OGGPLAY_FRAMES_PER_CALLBACK);
@@ -1105,27 +1058,6 @@ void nsOggDecodeStateMachine::LoadOggHeaders()
 
     oggplay_use_buffer(mPlayer, OGGPLAY_BUFFER_SIZE);
 
-    // Get the duration from the Ogg file. We only do this if the
-    // content length of the resource is known as we need to seek
-    // to the end of the file to get the last time field. We also
-    // only do this if the resource is seekable.
-    {
-      nsAutoMonitor mon(mDecoder->GetMonitor());
-      if (mState != DECODER_STATE_SHUTDOWN &&
-          mContentLength >= 0 && 
-          mSeekable) {
-        // Don't hold the monitor during the duration
-        // call as it can issue seek requests
-        // and blocks until these are completed.
-        mon.Exit();
-        PRInt64 d = oggplay_get_duration(mPlayer);
-        mon.Enter();
-        mDuration = d;
-      }
-      if (mState == DECODER_STATE_SHUTDOWN)
-        return;
-    }
-
     // Inform the element that we've loaded the Ogg metadata
     nsCOMPtr<nsIRunnable> metadataLoadedEvent = 
       NS_NEW_RUNNABLE_METHOD(nsOggDecoder, mDecoder, MetadataLoaded); 
@@ -1165,13 +1097,10 @@ void nsOggDecoder::SetVolume(float volume)
 
 float nsOggDecoder::GetDuration()
 {
-  nsAutoMonitor mon(mMonitor);
-  PRInt64 d = mDecodeStateMachine ? mDecodeStateMachine->GetDuration() : -1;
-  if (d >= 0) {
-     return static_cast<float>(d) / 1000.0;
-  }
-
-  return std::numeric_limits<float>::quiet_NaN();
+  // Currently not implemented. Video Spec says to return
+  // NaN if unknown.
+  // TODO: return NaN
+  return 0.0;
 }
 
 nsOggDecoder::nsOggDecoder() :
@@ -1180,9 +1109,8 @@ nsOggDecoder::nsOggDecoder() :
   mCurrentTime(0.0),
   mInitialVolume(0.0),
   mRequestedSeekTime(-1.0),
-  mContentLength(-1),
+  mContentLength(0),
   mNotifyOnShutdown(PR_FALSE),
-  mSeekable(PR_TRUE),
   mReader(0),
   mMonitor(0),
   mPlayState(PLAY_STATE_PAUSED),
@@ -1273,11 +1201,6 @@ nsresult nsOggDecoder::Load(nsIURI* aURI, nsIChannel* aChannel,
   NS_ENSURE_SUCCESS(rv, rv);
 
   mDecodeStateMachine = new nsOggDecodeStateMachine(this, mReader);
-  {
-    nsAutoMonitor mon(mMonitor);
-    mDecodeStateMachine->SetContentLength(mContentLength);
-    mDecodeStateMachine->SetSeekable(mSeekable);
-  }
 
   ChangeState(PLAY_STATE_LOADING);
 
@@ -1450,10 +1373,6 @@ PRInt64 nsOggDecoder::GetTotalBytes()
 void nsOggDecoder::SetTotalBytes(PRInt64 aBytes)
 {
   mContentLength = aBytes;
-  if (mDecodeStateMachine) {
-    nsAutoMonitor mon(mMonitor);
-    mDecodeStateMachine->SetContentLength(aBytes);
-  } 
 }
 
 void nsOggDecoder::UpdateBytesDownloaded(PRUint64 aBytes)
@@ -1621,18 +1540,3 @@ void nsOggDecoder::PlaybackPositionChanged()
     mElement->DispatchSimpleEvent(NS_LITERAL_STRING("timeupdate"));
   }
 }
-
-void nsOggDecoder::SetSeekable(PRBool aSeekable)
-{
-  mSeekable = aSeekable;
-  if (mDecodeStateMachine) {
-    nsAutoMonitor mon(mMonitor);
-    mDecodeStateMachine->SetSeekable(aSeekable);
-  }
-}
-
-PRBool nsOggDecoder::GetSeekable()
-{
-  return mSeekable;
-}
-
diff --git a/content/media/video/test/Makefile.in b/content/media/video/test/Makefile.in
index 9742952b46f3..bd7141fced73 100644
--- a/content/media/video/test/Makefile.in
+++ b/content/media/video/test/Makefile.in
@@ -49,7 +49,6 @@ _TEST_FILES = 	test_autoplay.html \
                 test_controls.html \
                 test_currentTime.html \
                 test_defaultPlaybackRate.html \
-                test_duration1.html \
                 test_ended1.html \
                 test_ended2.html \
                 test_networkState.html \
diff --git a/content/media/video/test/test_duration1.html b/content/media/video/test/test_duration1.html
deleted file mode 100644
index a78449c167a5..000000000000
--- a/content/media/video/test/test_duration1.html
+++ /dev/null
@@ -1,39 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <title>Media test: seek test 1</title>
-  <script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
-  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
-</head>
-<body>
-<video id='v'
-       src='seek.ogg'
-       onloadedmetadata='return startTest();'></video>
-<pre id="test">
-<script class="testbody" type="text/javascript">
-// Test that getting the duration from a file works
-var completed = false;
-var timeout;
-
-function startTest() {
-  if (completed)
-    return false;
-  var v = document.getElementById('v');
-  ok(Math.round(v.duration*1000) == 3833, "Check duration of video: " + v.duration);
-  completed = true;
-  clearTimeout(timeout);
-  SimpleTest.finish();
-  return false;
-}
-
-timeout = setTimeout(function () {
-		       ok(false, "Test timed out");
-		       SimpleTest.finish();
-		     }, 60000);
-
-SimpleTest.waitForExplicitFinish();
-</script>
-</pre>
-</body>
-</html>