Bug 577400 - Firefox 4.0b1 topcrash [@ rlxf.dll@0xd8ad] - blocklist the known-bad version of rlxf.dll, r=vlad

toolkit/xre/nsWindowsDllBlocklist.h

@@ -103,6 +103,9 @@ static DllBlockInfo sWindowsDllBlocklist[] = {
   // Music download filter for vkontakte.ru - old instances
   // of this DLL cause crashes
   {"vksaver.dll", MAKE_VERSION(1,0,0,1)},
+
+  // Topcrash in Firefox 4.0b1
+  {"rlxf.dll", MAKE_VERSION(1,2,323,1)},
   
   // leave these two in always for tests
   { "mozdllblockingtest.dll", ALL_VERSIONS },