From: Mike Hommey <mh@glandium.org>
Date: Thu, 12 Nov 2009 17:18:31 +0100
Subject: Avoid wrong sessionstore data to keep windows out of user sight

It happens that sessionstore can keep wrong information for the window
position or minimized state. Workaround this until the real bug is found
and fixed (probably in xulrunner).

Closes: #552426, #553453
---
 browser/components/sessionstore/SessionStore.jsm | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/browser/components/sessionstore/SessionStore.jsm b/browser/components/sessionstore/SessionStore.jsm
index 650a597..de13b8a 100644
--- a/browser/components/sessionstore/SessionStore.jsm
+++ b/browser/components/sessionstore/SessionStore.jsm
@@ -5012,7 +5012,7 @@ var SessionStoreInternal = {
         // _getWindowDimension.
         let desktopToCssScale =
           aWindow.desktopToDeviceScale / aWindow.devicePixelRatio;
-        aWindow.moveTo(aLeft * desktopToCssScale, aTop * desktopToCssScale);
+        aWindow.moveTo((aLeft < -aWidth) ? 0 : aLeft * desktopToCssScale, (aTop < -aHeight) ? 0 : aTop * desktopToCssScale);
       }
       if (
         aWidth &&
@@ -5041,9 +5041,8 @@ var SessionStoreInternal = {
           case "minimized":
             if (aSizeModeBeforeMinimized == "maximized") {
               aWindow.maximize();
+              break;
             }
-            aWindow.minimize();
-            break;
           case "normal":
             aWindow.restore();
             break;