Do not automatically move firefox windows to WS1

Working with multiple windows of firefox on different workspaces happens sometimes.
It is not really nice to move download windows and stuff to WS1 when I am waiting for it on on another workspace

xmonad.hs

@@ -45,8 +45,7 @@ baseXPConfig = defaultXPConfig {
 
 workspaceManageHook :: ManageHook
 workspaceManageHook = composeAll [
-     className =? "Firefox" --> doShift "1:web"
+     className =? "Icedove" --> doShift "2:com"
-    ,className =? "Icedove" --> doShift "2:com"
     ,className =? "Gajim" --> doShift "2:com"
     ,className =? "jetbrains-phpstorm" --> doShift "3:dev"
     ,className =? "jetbrains-pycharm" --> doShift "3:dev"