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.sys.mjs | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/browser/components/sessionstore/SessionStore.sys.mjs b/browser/components/sessionstore/SessionStore.sys.mjs
index 36d2bb4..a46ea43 100644
--- a/browser/components/sessionstore/SessionStore.sys.mjs
+++ b/browser/components/sessionstore/SessionStore.sys.mjs
@@ -5154,7 +5154,7 @@ 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 &&
@@ -5183,9 +5183,8 @@ var SessionStoreInternal = {
           case "minimized":
             if (aSizeModeBeforeMinimized == "maximized") {
               aWindow.maximize();
+              break;
             }
-            aWindow.minimize();
-            break;
           case "normal":
             aWindow.restore();
             break;