--- a/embedding/components/printingui/ipc/PPrintingTypes.ipdlh
+++ b/embedding/components/printingui/ipc/PPrintingTypes.ipdlh
@@ -55,17 +55,16 @@ struct PrintData {
   short paperSizeUnit;
   nsString plexName;
   nsString colorspace;
   nsString resolutionName;
   bool downloadFonts;
   bool printReversed;
   bool printInColor;
   int32_t orientation;
-  nsString printCommand;
   int32_t numCopies;
   nsString printerName;
   bool printToFile;
   nsString toFileName;
   short outputFormat;
   int32_t printPageDelay;
   int32_t resolution;
   int32_t duplex;

--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -3508,17 +3508,16 @@ pref("autocomplete.ungrab_during_mode_sw
 // Default to using the system filepicker if possible, but allow
 // toggling to use the XUL filepicker
 pref("ui.allow_platform_file_picker", true);
 
 pref("helpers.global_mime_types_file", "/etc/mime.types");
 pref("helpers.global_mailcap_file", "/etc/mailcap");
 pref("helpers.private_mime_types_file", "~/.mime.types");
 pref("helpers.private_mailcap_file", "~/.mailcap");
-pref("print.print_command", "lpr ${MOZ_PRINTER_NAME:+-P\"$MOZ_PRINTER_NAME\"}");
 pref("print.printer_list", ""); // list of printers, separated by spaces
 pref("print.print_reversed", false);
 pref("print.print_color", true);
 pref("print.print_landscape", false);
 pref("print.print_paper_size", 0);
 
 // print_extra_margin enables platforms to specify an extra gap or margin
 // around the content of the page for Print Preview only
@@ -3530,17 +3529,16 @@ pref("layout.css.scroll-behavior.propert
 
 // CSS Scroll Snapping requires the C++ APZC
 pref("layout.css.scroll-snap.enabled", false);
 
 /* PostScript print module prefs */
 // pref("print.postscript.enabled",      true);
 pref("print.postscript.paper_size",    "letter");
 pref("print.postscript.orientation",   "portrait");
-pref("print.postscript.print_command", "lpr ${MOZ_PRINTER_NAME:+-P\"$MOZ_PRINTER_NAME\"}");
 
 // Setting default_level_parent to true makes the default level for popup
 // windows "top" instead of "parent".  On GTK2 platform, this is implemented
 // with override-redirect windows which is the normal way to implement
 // temporary popup windows.  Setting this to false would make the default
 // level "parent" which is implemented with managed windows.
 // A problem with using managed windows is that metacity sometimes deactivates
 // the parent window when the managed popup is shown.
@@ -3581,17 +3579,16 @@ pref("autocomplete.ungrab_during_mode_sw
 // Default to using the system filepicker if possible, but allow
 // toggling to use the XUL filepicker
 pref("ui.allow_platform_file_picker", true);
 
 pref("helpers.global_mime_types_file", "/etc/mime.types");
 pref("helpers.global_mailcap_file", "/etc/mailcap");
 pref("helpers.private_mime_types_file", "~/.mime.types");
 pref("helpers.private_mailcap_file", "~/.mailcap");
-pref("print.print_command", "lpr ${MOZ_PRINTER_NAME:+-P\"$MOZ_PRINTER_NAME\"}");
 pref("print.printer_list", ""); // list of printers, separated by spaces
 pref("print.print_reversed", false);
 pref("print.print_color", true);
 pref("print.print_landscape", false);
 pref("print.print_paper_size", 0);
 
 // print_extra_margin enables platforms to specify an extra gap or margin
 // around the content of the page for Print Preview only
@@ -3717,17 +3714,16 @@ pref("font.name.monospace.zh-HK", "monos
 pref("font.name.serif.zh-TW", "serif");
 pref("font.name.sans-serif.zh-TW", "sans-serif");
 pref("font.name.monospace.zh-TW", "monospace");
 
 /* PostScript print module prefs */
 // pref("print.postscript.enabled",      true);
 pref("print.postscript.paper_size",    "letter");
 pref("print.postscript.orientation",   "portrait");
-pref("print.postscript.print_command", "lpr ${MOZ_PRINTER_NAME:+-P\"$MOZ_PRINTER_NAME\"}");
 
 // On GTK2 platform, we should use topmost window level for the default window
 // level of <panel> element of XUL. GTK2 has only two window types. One is
 // normal top level window, other is popup window. The popup window is always
 // topmost window level, therefore, we are using normal top level window for
 // non-topmost panel, but it is pretty hacky. On some Window Managers, we have
 // 2 problems:
 // 1. The non-topmost panel steals focus from its parent window at showing.
@@ -3939,24 +3935,16 @@ pref("font.name.monospace.x-cyrillic", "
 // Override default Unicode fonts
 pref("font.name.serif.x-unicode", "dt-interface system-ucs2.cjk_japan-0");
 pref("font.name.sans-serif.x-unicode", "dt-interface system-ucs2.cjk_japan-0");
 pref("font.name.monospace.x-unicode", "dt-interface user-ucs2.cjk_japan-0");
 
 # AIX
 #endif
 
-#ifdef SOLARIS
-
-pref("print.postscript.print_command", "lp -c -s ${MOZ_PRINTER_NAME:+-d\"$MOZ_PRINTER_NAME\"}");
-pref("print.print_command", "lp -c -s ${MOZ_PRINTER_NAME:+-d\"$MOZ_PRINTER_NAME\"}");
-
-# Solaris
-#endif
-
 // Login Manager prefs
 pref("signon.rememberSignons",              true);
 pref("signon.autofillForms",                true);
 pref("signon.autologin.proxy",              false);
 pref("signon.storeWhenAutocompleteOff",     true);
 pref("signon.ui.experimental",              false);
 pref("signon.debug",                        false);
 

--- a/toolkit/components/printing/content/printdialog.js
+++ b/toolkit/components/printing/content/printdialog.js
@@ -372,17 +372,16 @@ function onAccept()
 
   if (saveToPrefs && printService != null) {
     var flags = gPrintSetInterface.kInitSavePaperSize      | 
                 gPrintSetInterface.kInitSaveColorSpace     |
                 gPrintSetInterface.kInitSaveEdges          |
                 gPrintSetInterface.kInitSaveInColor        |
                 gPrintSetInterface.kInitSaveResolutionName |
                 gPrintSetInterface.kInitSaveDownloadFonts  |
-                gPrintSetInterface.kInitSavePrintCommand   |
                 gPrintSetInterface.kInitSaveShrinkToFit    |
                 gPrintSetInterface.kInitSaveScaling;
     printService.savePrintSettingsToPrefs(gPrintSettings, true, flags);
   }
 
   // set return value to "print"
   if (paramBlock) {
     paramBlock.SetInt(0, 1);

--- a/toolkit/components/printing/content/printjoboptions.js
+++ b/toolkit/components/printing/content/printjoboptions.js
@@ -9,17 +9,16 @@ var gPrintBundle;
 var gPrintSettings = null;
 var gPrintSettingsInterface  = Components.interfaces.nsIPrintSettings;
 var gPaperArray;
 var gPlexArray;
 var gResolutionArray;
 var gColorSpaceArray;
 var gPrefs;
 
-var default_command    = "lpr";
 var gPrintSetInterface = Components.interfaces.nsIPrintSettings;
 var doDebug            = true;
 
 //---------------------------------------------------
 function checkDouble(element, maxVal)
 {
   var value = element.value;
   if (value && value.length > 0) {
@@ -72,20 +71,16 @@ function initDialog()
 
   dialog.resolutionList  = document.getElementById("resolutionList");
   dialog.resolutionGroup = document.getElementById("resolutionGroup");
 
   dialog.jobTitleLabel   = document.getElementById("jobTitleLabel");
   dialog.jobTitleGroup   = document.getElementById("jobTitleGroup");
   dialog.jobTitleInput   = document.getElementById("jobTitleInput");
     
-  dialog.cmdLabel        = document.getElementById("cmdLabel");
-  dialog.cmdGroup        = document.getElementById("cmdGroup");
-  dialog.cmdInput        = document.getElementById("cmdInput");
-
   dialog.colorspaceList  = document.getElementById("colorspaceList");
   dialog.colorspaceGroup = document.getElementById("colorspaceGroup");
 
   dialog.colorGroup      = document.getElementById("colorGroup");
   dialog.colorRadioGroup = document.getElementById("colorRadioGroup");
   dialog.colorRadio      = document.getElementById("colorRadio");
   dialog.grayRadio       = document.getElementById("grayRadio");
 
@@ -584,48 +579,45 @@ function loadDialog()
   var print_paper_width      = 0.0;
   var print_paper_height     = 0.0;
   var print_paper_name       = "";
   var print_plex_name        = "";
   var print_resolution_name  = "";
   var print_colorspace       = "";
   var print_color            = true;
   var print_downloadfonts    = true;
-  var print_command          = default_command;
   var print_jobtitle         = "";
 
   gPrefs = Components.classes["@mozilla.org/preferences-service;1"].getService(Components.interfaces.nsIPrefBranch);
 
   if (gPrintSettings) {
     print_paper_type       = gPrintSettings.paperSizeType;
     print_paper_unit       = gPrintSettings.paperSizeUnit;
     print_paper_width      = gPrintSettings.paperWidth;
     print_paper_height     = gPrintSettings.paperHeight;
     print_paper_name       = gPrintSettings.paperName;
     print_plex_name        = gPrintSettings.plexName;
     print_resolution_name  = gPrintSettings.resolutionName;
     print_colorspace       = gPrintSettings.colorspace;
     print_color            = gPrintSettings.printInColor;
     print_downloadfonts    = gPrintSettings.downloadFonts;
-    print_command          = gPrintSettings.printCommand;
     print_jobtitle         = gPrintSettings.title;
   }
 
   if (doDebug) {
     dump("loadDialog******************************\n");
     dump("paperSizeType   "+print_paper_unit+"\n");
     dump("paperWidth      "+print_paper_width+"\n");
     dump("paperHeight     "+print_paper_height+"\n");
     dump("paperName       "+print_paper_name+"\n");
     dump("plexName        "+print_plex_name+"\n");
     dump("resolutionName  "+print_resolution_name+"\n");
     dump("colorspace      "+print_colorspace+"\n");
     dump("print_color     "+print_color+"\n");
     dump("print_downloadfonts "+print_downloadfonts+"\n");
-    dump("print_command    "+print_command+"\n");
     dump("print_jobtitle   "+print_jobtitle+"\n");
   }
 
   createPaperArray();
 
   var paperSelectedInx = 0;
   for (var i=0;i<gPaperArray.length;i++) { 
     if (print_paper_name == gPaperArray[i].name) {
@@ -704,26 +696,16 @@ function loadDialog()
       dialog.jobTitleInput.removeAttribute("disabled");
     else
       dialog.jobTitleInput.setAttribute("disabled","true");
     if (gPrefs.getBoolPref("print.tmp.printerfeatures." + gPrintSettings.printerName + ".supports_jobtitle_change"))
       dialog.jobTitleGroup.removeAttribute("hidden");
     else
       dialog.jobTitleGroup.setAttribute("hidden","true");
 
-    // spooler command
-    if (gPrefs.getBoolPref("print.tmp.printerfeatures." + gPrintSettings.printerName + ".can_change_spoolercommand"))
-      dialog.cmdInput.removeAttribute("disabled");
-    else
-      dialog.cmdInput.setAttribute("disabled","true");
-    if (gPrefs.getBoolPref("print.tmp.printerfeatures." + gPrintSettings.printerName + ".supports_spoolercommand_change"))
-      dialog.cmdGroup.removeAttribute("hidden");
-    else
-      dialog.cmdGroup.setAttribute("hidden","true");
-
     // paper size
     if (gPrefs.getBoolPref("print.tmp.printerfeatures." + gPrintSettings.printerName + ".can_change_paper_size"))
       dialog.paperList.removeAttribute("disabled");
     else
       dialog.paperList.setAttribute("disabled","true");
     if (gPrefs.getBoolPref("print.tmp.printerfeatures." + gPrintSettings.printerName + ".supports_paper_size_change"))
       dialog.paperGroup.removeAttribute("hidden");
     else
@@ -775,29 +757,24 @@ function loadDialog()
     else
       dialog.downloadFonts.setAttribute("disabled","true");
     if (gPrefs.getBoolPref("print.tmp.printerfeatures." + gPrintSettings.printerName + ".supports_downloadfonts_change"))
       dialog.fontsGroup.removeAttribute("hidden");
     else
       dialog.fontsGroup.setAttribute("hidden","true");
   }
 
-  if (print_command == "") {
-    print_command = default_command;
-  }
-
   if (print_color) {
     dialog.colorRadioGroup.selectedItem = dialog.colorRadio;
   } else {
     dialog.colorRadioGroup.selectedItem = dialog.grayRadio;
   }
 
   dialog.downloadFonts.checked = print_downloadfonts;
 
-  dialog.cmdInput.value      = print_command;
   dialog.jobTitleInput.value = print_jobtitle;
 
   dialog.topInput.value    = gPrintSettings.edgeTop.toFixed(2);
   dialog.bottomInput.value = gPrintSettings.edgeBottom.toFixed(2);
   dialog.leftInput.value   = gPrintSettings.edgeLeft.toFixed(2);
   dialog.rightInput.value  = gPrintSettings.edgeRight.toFixed(2);
 }
 
@@ -857,17 +834,16 @@ function onAccept()
     gPrintSettings.paperName       = print_paper_name;
     gPrintSettings.plexName        = print_plex_name;
     gPrintSettings.resolutionName  = print_resolution_name;
     gPrintSettings.colorspace      = print_colorspace;
 
     // save these out so they can be picked up by the device spec
     gPrintSettings.printInColor     = dialog.colorRadio.selected;
     gPrintSettings.downloadFonts    = dialog.downloadFonts.checked;
-    gPrintSettings.printCommand     = dialog.cmdInput.value;
     gPrintSettings.title            = dialog.jobTitleInput.value;
 
     gPrintSettings.edgeTop          = dialog.topInput.value;
     gPrintSettings.edgeBottom       = dialog.bottomInput.value;
     gPrintSettings.edgeLeft         = dialog.leftInput.value;
     gPrintSettings.edgeRight        = dialog.rightInput.value;
 
     if (doDebug) {
@@ -878,17 +854,16 @@ function onAccept()
       dump("paperHeight      "+print_paper_height+"\n");
       dump("paperName       '"+print_paper_name+"'\n");
       dump("plexName        '"+print_plex_name+"'\n");
       dump("resolutionName  '"+print_resolution_name+"'\n");
       dump("colorspace      '"+print_colorspace+"'\n");
 
       dump("printInColor     "+gPrintSettings.printInColor+"\n");
       dump("downloadFonts    "+gPrintSettings.downloadFonts+"\n");
-      dump("printCommand    '"+gPrintSettings.printCommand+"'\n");
     }
   } else {
     dump("************ onAccept gPrintSettings: "+gPrintSettings+"\n");
   }
 
   if (paramBlock) {
     // set return value to "ok"
     paramBlock.SetInt(0, 1);

--- a/toolkit/components/printing/content/printjoboptions.xul
+++ b/toolkit/components/printing/content/printjoboptions.xul
@@ -78,24 +78,16 @@
                  accesskey="&colorspaceInput.accesskey;"
                  control="colorspaceList"/>
         </hbox>
         <menulist id="colorspaceList" flex="1">
           <menupopup/>
         </menulist>
       </row>
 
-      <row id="cmdGroup">
-        <label id="cmdLabel"
-               value="&cmdInput.label;"
-               accesskey="&cmdInput.accesskey;"
-               control="cmdInput"/>
-        <textbox id="cmdInput" flex="1"/>
-      </row>
-
       <row id="colorGroup">
         <hbox align="center" pack="end">
           <label control="colorRadioGroup" value="&colorGroup.label;"/>
         </hbox>
         <radiogroup id="colorRadioGroup" orient="horizontal">
           <radio id="grayRadio"
                  label="&grayRadio.label;"
                  accesskey="&grayRadio.accesskey;"/>

--- a/toolkit/locales/en-US/chrome/global/printjoboptions.dtd
+++ b/toolkit/locales/en-US/chrome/global/printjoboptions.dtd
@@ -10,19 +10,16 @@
 <!ENTITY paperInput.accesskey "P">
 
 <!ENTITY plexInput.label "Plex mode:">
 <!ENTITY plexInput.accesskey "m">
 
 <!ENTITY resolutionInput.label "Resolution/Quality:">
 <!ENTITY resolutionInput.accesskey "e">
 
-<!ENTITY cmdInput.label "Print Command:">
-<!ENTITY cmdInput.accesskey "o">
-
 <!ENTITY jobTitleInput.label "Job Title:">
 <!ENTITY jobTitleInput.accesskey "J">
 
 <!ENTITY colorGroup.label "Color:">
 <!ENTITY grayRadio.label "Grayscale">
 <!ENTITY grayRadio.accesskey "G">
 <!ENTITY colorRadio.label "Color">
 <!ENTITY colorRadio.accesskey "C">

--- a/widget/gtk/nsDeviceContextSpecG.cpp
+++ b/widget/gtk/nsDeviceContextSpecG.cpp
@@ -573,29 +573,16 @@ NS_IMETHODIMP nsPrinterEnumeratorGTK::In
         aPrintSettings->SetPaperWidth(paper.Width_mm());
         aPrintSettings->SetPaperHeight(paper.Height_mm());
         aPrintSettings->SetPaperName(NS_ConvertASCIItoUTF16(paper.Name()).get());
       }
       else {
         DO_PR_DEBUG_LOG(("Unknown paper size '%s' given.\n", papername.get()));
       }
     }
-
-    bool hasSpoolerCmd = (nsPSPrinterList::kTypePS ==
-        nsPSPrinterList::GetPrinterType(fullPrinterName));
-
-    if (hasSpoolerCmd) {
-      nsAutoCString command;
-      if (NS_SUCCEEDED(CopyPrinterCharPref("postscript",
-            printerName, "print_command", command))) {
-        DO_PR_DEBUG_LOG(("setting default print command to '%s'\n",
-            command.get()));
-        aPrintSettings->SetPrintCommand(NS_ConvertUTF8toUTF16(command).get());
-      }
-    }
     
     return NS_OK;    
   }
 
   return NS_ERROR_UNEXPECTED;
 }
 
 NS_IMETHODIMP nsPrinterEnumeratorGTK::DisplayPropertiesDlg(const char16_t *aPrinter, nsIPrintSettings *aPrintSettings)

--- a/widget/nsIPrintSettings.idl
+++ b/widget/nsIPrintSettings.idl
@@ -17,17 +17,17 @@
   [ref] native nsNativeIntMarginRef(nsIntMargin);
   [ref] native IntegerArray(nsTArray<int32_t>);
   
 interface nsIPrintSession;
 
 /**
  * Simplified graphics interface for JS rendering.
  */
-[scriptable, uuid(11b86b46-12c9-4e63-8023-129dd239ace7)]
+[scriptable, uuid(ec3d43bb-3fe0-4f9a-9502-eebcc511555b)]
 
 interface nsIPrintSettings : nsISupports
 {
   /**
    * PrintSettings to be Saved Navigation Constants
    */
   const unsigned long kInitSaveOddEvenPages   = 0x00000001;
   const unsigned long kInitSaveHeaderLeft     = 0x00000002;
@@ -44,17 +44,17 @@ interface nsIPrintSettings : nsISupports
   /* Flag 0x00001000 is unused */
   const unsigned long kInitSavePaperData      = 0x00002000;
   const unsigned long kInitSaveUnwriteableMargins = 0x00004000;
   const unsigned long kInitSaveEdges          = 0x00008000;
 
   const unsigned long kInitSaveReversed       = 0x00010000;
   const unsigned long kInitSaveInColor        = 0x00020000;
   const unsigned long kInitSaveOrientation    = 0x00040000;
-  const unsigned long kInitSavePrintCommand   = 0x00080000;
+
   const unsigned long kInitSavePrinterName    = 0x00100000;
   const unsigned long kInitSavePrintToFile    = 0x00200000;
   const unsigned long kInitSaveToFileName     = 0x00400000;
   const unsigned long kInitSavePageDelay      = 0x00800000;
   const unsigned long kInitSaveMargins        = 0x01000000;
   const unsigned long kInitSaveNativeData     = 0x02000000;
   const unsigned long kInitSavePlexName       = 0x04000000;
   const unsigned long kInitSaveShrinkToFit    = 0x08000000;
@@ -238,17 +238,16 @@ interface nsIPrintSettings : nsISupports
   attribute wstring resolutionName;/* device-specific identifer of resolution or quality
                                     * (like "600", "600x300", "600x300x12", "high-res",
                                     * "med-res". "low-res", etc.) */
   attribute boolean downloadFonts; /* enable font download to printer? */
 
   attribute boolean printReversed;
   attribute boolean printInColor;  /* a false means grayscale */
   attribute long    orientation;   /*  see orientation consts */
-  attribute wstring printCommand;
   attribute long    numCopies;
 
   attribute wstring printerName;   /* name of destination printer */
 
   attribute boolean printToFile;
   attribute wstring toFileName;
   attribute short   outputFormat;
 

--- a/widget/nsPrintOptionsImpl.cpp
+++ b/widget/nsPrintOptionsImpl.cpp
@@ -64,17 +64,16 @@ static const char kPrintPaperSizeType[] 
 static const char kPrintPaperData[]     = "print_paper_data";
 static const char kPrintPaperSizeUnit[] = "print_paper_size_unit";
 static const char kPrintPaperWidth[]    = "print_paper_width";
 static const char kPrintPaperHeight[]   = "print_paper_height";
 static const char kPrintColorspace[]    = "print_colorspace";
 static const char kPrintResolutionName[]= "print_resolution_name";
 static const char kPrintDownloadFonts[] = "print_downloadfonts";
 static const char kPrintOrientation[]   = "print_orientation";
-static const char kPrintCommand[]       = "print_command";
 static const char kPrinterName[]        = "print_printer";
 static const char kPrintToFile[]        = "print_to_file";
 static const char kPrintToFileName[]    = "print_to_filename";
 static const char kPrintPageDelay[]     = "print_page_delay";
 static const char kPrintBGColors[]      = "print_bgcolor";
 static const char kPrintBGImages[]      = "print_bgimages";
 static const char kPrintShrinkToFit[]   = "print_shrink_to_fit";
 static const char kPrintScaling[]       = "print_scaling";
@@ -194,20 +193,16 @@ nsPrintOptions::SerializeToPrintData(nsI
   aSettings->GetResolutionName(getter_Copies(resolutionName));
   data->resolutionName() = resolutionName;
 
   aSettings->GetDownloadFonts(&data->downloadFonts());
   aSettings->GetPrintReversed(&data->printReversed());
   aSettings->GetPrintInColor(&data->printInColor());
   aSettings->GetOrientation(&data->orientation());
 
-  nsXPIDLString printCommand;
-  aSettings->GetPrintCommand(getter_Copies(printCommand));
-  data->printCommand() = printCommand;
-
   aSettings->GetNumCopies(&data->numCopies());
 
   nsXPIDLString printerName;
   aSettings->GetPrinterName(getter_Copies(printerName));
   data->printerName() = printerName;
 
   aSettings->GetPrintToFile(&data->printToFile());
 
@@ -314,18 +309,16 @@ nsPrintOptions::DeserializeToPrintSettin
 
   settings->SetResolutionName(data.resolutionName().get());
 
   settings->SetDownloadFonts(data.downloadFonts());
   settings->SetPrintReversed(data.printReversed());
   settings->SetPrintInColor(data.printInColor());
   settings->SetOrientation(data.orientation());
 
-  settings->SetPrintCommand(data.printCommand().get());
-
   settings->SetNumCopies(data.numCopies());
 
   settings->SetPrinterName(data.printerName().get());
 
   settings->SetPrintToFile(data.printToFile());
 
   settings->SetToFileName(data.toFileName().get());
 
@@ -694,23 +687,16 @@ nsPrintOptions::ReadPrefs(nsIPrintSettin
 
   if (aFlags & nsIPrintSettings::kInitSaveOrientation) {
     if (GETINTPREF(kPrintOrientation, &iVal)) {
       aPS->SetOrientation(iVal);
       DUMP_INT(kReadStr, kPrintOrientation, iVal);
     }
   }
 
-  if (aFlags & nsIPrintSettings::kInitSavePrintCommand) {
-    if (GETSTRPREF(kPrintCommand, &str)) {
-      aPS->SetPrintCommand(str.get());
-      DUMP_STR(kReadStr, kPrintCommand, str.get());
-    }
-  }
-
   if (aFlags & nsIPrintSettings::kInitSavePrintToFile) {
     if (GETBOOLPREF(kPrintToFile, &b)) {
       aPS->SetPrintToFile(b);
       DUMP_BOOL(kReadStr, kPrintToFile, b);
     }
   }
 
   if (aFlags & nsIPrintSettings::kInitSaveToFileName) {
@@ -995,23 +981,16 @@ nsPrintOptions::WritePrefs(nsIPrintSetti
 
   if (aFlags & nsIPrintSettings::kInitSaveOrientation) {
     if (NS_SUCCEEDED(aPS->GetOrientation(&iVal))) {
       DUMP_INT(kWriteStr, kPrintOrientation, iVal);
       Preferences::SetInt(GetPrefName(kPrintOrientation, aPrinterName), iVal);
     }
   }
 
-  if (aFlags & nsIPrintSettings::kInitSavePrintCommand) {
-    if (NS_SUCCEEDED(aPS->GetPrintCommand(&uStr))) {
-      DUMP_STR(kWriteStr, kPrintCommand, uStr);
-      Preferences::SetString(GetPrefName(kPrintCommand, aPrinterName), uStr);
-    }
-  }
-
   // Only the general version of this pref is saved
   if ((aFlags & nsIPrintSettings::kInitSavePrinterName)
       && aPrinterName.IsEmpty()) {
     if (NS_SUCCEEDED(aPS->GetPrinterName(&uStr))) {
       DUMP_STR(kWriteStr, kPrinterName, uStr);
       Preferences::SetString(kPrinterName, uStr);
     }
   }
@@ -1506,17 +1485,16 @@ Tester::Tester()
     ps->SetPaperSizeType(10);
     ps->SetPaperData(1);
     ps->SetPaperWidth(100.0);
     ps->SetPaperHeight(50.0);
     ps->SetPaperSizeUnit(nsIPrintSettings::kPaperSizeMillimeters);
     ps->SetPrintReversed(true);
     ps->SetPrintInColor(true);
     ps->SetOrientation(nsIPrintSettings::kLandscapeOrientation);
-    ps->SetPrintCommand(NS_ConvertUTF8toUTF16("Command").get());
     ps->SetNumCopies(2);
     ps->SetPrinterName(NS_ConvertUTF8toUTF16("Printer Name").get());
     ps->SetPrintToFile(true);
     ps->SetToFileName(NS_ConvertUTF8toUTF16("File Name").get());
     ps->SetPrintPageDelay(1000);
     ps->SetShrinkToFit(true);
 
     struct SettingsType {
@@ -1538,17 +1516,16 @@ Tester::Tester()
       {kPrintPlexName, nsIPrintSettings::kInitSavePlexName},
       {kPrintPaperData, nsIPrintSettings::kInitSavePaperData},
       {kPrintReversed, nsIPrintSettings::kInitSaveReversed},
       {kPrintInColor, nsIPrintSettings::kInitSaveInColor},
       {kPrintColorspace, nsIPrintSettings::kInitSaveColorspace},
       {kPrintResolutionName, nsIPrintSettings::kInitSaveResolutionName},
       {kPrintDownloadFonts, nsIPrintSettings::kInitSaveDownloadFonts},
       {kPrintOrientation, nsIPrintSettings::kInitSaveOrientation},
-      {kPrintCommand, nsIPrintSettings::kInitSavePrintCommand},
       {kPrinterName, nsIPrintSettings::kInitSavePrinterName},
       {kPrintToFile, nsIPrintSettings::kInitSavePrintToFile},
       {kPrintToFileName, nsIPrintSettings::kInitSaveToFileName},
       {kPrintPageDelay, nsIPrintSettings::kInitSavePageDelay},
       {"Margins", nsIPrintSettings::kInitSaveMargins},
       {"All", nsIPrintSettings::kInitSaveAll},
       {nullptr, 0}};
 

--- a/widget/nsPrintSettingsImpl.cpp
+++ b/widget/nsPrintSettingsImpl.cpp
@@ -288,33 +288,16 @@ NS_IMETHODIMP nsPrintSettings::GetNumCop
   return NS_OK;
 }
 NS_IMETHODIMP nsPrintSettings::SetNumCopies(int32_t aNumCopies)
 {
   mNumCopies = aNumCopies;
   return NS_OK;
 }
 
-/* attribute wstring printCommand; */
-NS_IMETHODIMP nsPrintSettings::GetPrintCommand(char16_t * *aPrintCommand)
-{
-  //NS_ENSURE_ARG_POINTER(aPrintCommand);
-  *aPrintCommand = ToNewUnicode(mPrintCommand);
-  return NS_OK;
-}
-NS_IMETHODIMP nsPrintSettings::SetPrintCommand(const char16_t * aPrintCommand)
-{
-  if (aPrintCommand) {
-    mPrintCommand = aPrintCommand;
-  } else {
-    mPrintCommand.SetLength(0);
-  }
-  return NS_OK;
-}
-
 /* attribute boolean printToFile; */
 NS_IMETHODIMP nsPrintSettings::GetPrintToFile(bool *aPrintToFile)
 {
   //NS_ENSURE_ARG_POINTER(aPrintToFile);
   *aPrintToFile = mPrintToFile;
   return NS_OK;
 }
 NS_IMETHODIMP nsPrintSettings::SetPrintToFile(bool aPrintToFile)
@@ -1178,17 +1161,16 @@ nsPrintSettings& nsPrintSettings::operat
   mPaperSizeType       = rhs.mPaperSizeType;
   mPaperData           = rhs.mPaperData;
   mPaperWidth          = rhs.mPaperWidth;
   mPaperHeight         = rhs.mPaperHeight;
   mPaperSizeUnit       = rhs.mPaperSizeUnit;
   mPrintReversed       = rhs.mPrintReversed;
   mPrintInColor        = rhs.mPrintInColor;
   mOrientation         = rhs.mOrientation;
-  mPrintCommand        = rhs.mPrintCommand;
   mNumCopies           = rhs.mNumCopies;
   mPrinter             = rhs.mPrinter;
   mPrintToFile         = rhs.mPrintToFile;
   mToFileName          = rhs.mToFileName;
   mOutputFormat        = rhs.mOutputFormat;
   mPrintPageDelay      = rhs.mPrintPageDelay;
 
   for (int32_t i=0;i<NUM_HEAD_FOOT;i++) {

--- a/widget/nsPrintSettingsImpl.h
+++ b/widget/nsPrintSettingsImpl.h
@@ -91,17 +91,16 @@ protected:
   bool          mPrintReversed;
   bool          mPrintInColor; // a false means grayscale
   int32_t       mOrientation;  // see orientation consts
   nsString      mColorspace;
   nsString      mResolutionName;
   int32_t       mResolution;
   int32_t       mDuplex;
   bool          mDownloadFonts;
-  nsString      mPrintCommand;
   int32_t       mNumCopies;
   nsXPIDLString mPrinter;
   bool          mPrintToFile;
   nsString      mToFileName;
   int16_t       mOutputFormat;
   bool          mIsInitedFromPrinter;
   bool          mIsInitedFromPrefs;
   bool          mPersistMarginBoxSettings;