diff --git a/mozilla/layout/base/nsLayoutAtomList.h b/mozilla/layout/base/nsLayoutAtomList.h
index 484dd9fc934..8b572ce0f31 100644
--- a/mozilla/layout/base/nsLayoutAtomList.h
+++ b/mozilla/layout/base/nsLayoutAtomList.h
@@ -254,6 +254,7 @@ LAYOUT_ATOM(embeddingLevel, "EmbeddingLevel")                  // PRUint8
 LAYOUT_ATOM(endsInDiacritic, "EndsInDiacritic")                // PRUint32
 LAYOUT_ATOM(nextBidi, "NextBidi")                              // nsIFrame*
 LAYOUT_ATOM(charType, "charType")                              // PRUint8
+LAYOUT_ATOM(scriptEnabledBeforePrintPreview, "scriptEnabledBeforePrintPreview") // PRBool
 
 #ifdef MOZ_SVG
   // Alphabetical list of SVG frame types
diff --git a/mozilla/layout/base/nsPresShell.cpp b/mozilla/layout/base/nsPresShell.cpp
index 666375c6a3e..a926e501b20 100644
--- a/mozilla/layout/base/nsPresShell.cpp
+++ b/mozilla/layout/base/nsPresShell.cpp
@@ -2381,7 +2381,12 @@ PresShell::SetPrefNoScriptRule()
 {
   nsresult rv = NS_OK;
 
-  if (mDocument->IsScriptEnabled()) {
+  PRBool scriptEnabled = mDocument->IsScriptEnabled() ||
+    (mPresContext->Type() == nsPresContext::eContext_PrintPreview &&
+     NS_PTR_TO_INT32(mDocument->GetProperty(
+                       nsLayoutAtoms::scriptEnabledBeforePrintPreview)));
+
+  if (scriptEnabled) {
     if (!mPrefStyleSheet) {
       rv = CreatePreferenceStyleSheet();
       NS_ENSURE_SUCCESS(rv, rv);
diff --git a/mozilla/layout/printing/nsPrintEngine.cpp b/mozilla/layout/printing/nsPrintEngine.cpp
index 282f61f6583..f559cb7c610 100644
--- a/mozilla/layout/printing/nsPrintEngine.cpp
+++ b/mozilla/layout/printing/nsPrintEngine.cpp
@@ -4388,12 +4388,23 @@ nsPrintEngine::TurnScriptingOn(PRBool aDoTurnOn)
   for (PRInt32 i=0;i<prt->mPrintDocList->Count();i++) {
     nsPrintObject* po = (nsPrintObject*)prt->mPrintDocList->ElementAt(i);
     NS_ASSERTION(po, "nsPrintObject can't be null!");
+
+    nsIDocument* doc = po->mDocument;
     
     // get the script global object
-    nsIScriptGlobalObject *scriptGlobalObj = po->mDocument->GetScriptGlobalObject();
+    nsIScriptGlobalObject *scriptGlobalObj = doc->GetScriptGlobalObject();
     if (scriptGlobalObj) {
       nsIScriptContext *scx = scriptGlobalObj->GetContext();
       NS_ASSERTION(scx, "Can't get nsIScriptContext");
+      if (aDoTurnOn) {
+        doc->DeleteProperty(nsLayoutAtoms::scriptEnabledBeforePrintPreview);
+      } else {
+        // Stash the current value of IsScriptEnabled on the document,
+        // so that layout code running in print preview doesn't get
+        // confused.
+        doc->SetProperty(nsLayoutAtoms::scriptEnabledBeforePrintPreview,
+                         NS_INT32_TO_PTR(doc->IsScriptEnabled()));
+      }
       scx->SetScriptsEnabled(aDoTurnOn, PR_TRUE);
     }
   }