--- a/browser/components/nsBrowserContentHandler.js
+++ b/browser/components/nsBrowserContentHandler.js
@@ -463,20 +463,18 @@ nsBrowserContentHandler.prototype = {
               "  --new-window <url> Open <url> in a new window.\n" +
               "  --new-tab <url>    Open <url> in a new tab.\n" +
               "  --private-window <url> Open <url> in a new private window.\n";
     if (AppConstants.platform == "win") {
       info += "  --preferences      Open Options dialog.\n";
     } else {
       info += "  --preferences      Open Preferences dialog.\n";
     }
-    if (AppConstants.platform == "win" || AppConstants.MOZ_WIDGET_GTK) {
-      info += "  --screenshot [<path>] Save screenshot to <path> or in working directory.\n";
-      info += "  --window-size width[,height] Width and optionally height of screenshot.\n";
-    }
+    info += "  --screenshot [<path>] Save screenshot to <path> or in working directory.\n";
+    info += "  --window-size width[,height] Width and optionally height of screenshot.\n";
     info += "  --search <term>    Search <term> with your default search engine.\n";
     return info;
   },
 
   /* nsIBrowserHandler */
 
   get defaultArgs() {
     var prefb = Services.prefs;