Bug 1135866 - Skip browser_openDialog.js on Windows debug as well.

toolkit/mozapps/extensions/test/browser/browser-common.ini

@@ -57,7 +57,7 @@ skip-if = buildapp == 'mulet'
 [browser_updateid.js]
 [browser_purchase.js]
 [browser_openDialog.js]
-skip-if = os == 'win' && !debug # Disabled on Windows opt/PGO builds due to intermittent failures (bug 1135866)
+skip-if = os == 'win' # Disabled on Windows due to intermittent failures (bug 1135866)
 [browser_types.js]
 [browser_inlinesettings.js]
 [browser_inlinesettings_browser.js]