[arch-general] Firefox 33, Intel GPU and latest "flashplayer": No animations but white area.

Hello, can someone reproduce the following on an Intel GPU with Firefox 33 and Flash? If I open a website with "Flash media", then the plugin loads (the context menu is the one that gets created by Adobe Flash) but I can't see anything. The area, where the "animation" should be is just white. I've downgraded to the latest Firefox 32 and my Flash content immediately worked again. Am I the only one with this problem or can someone reproduce this? Thanks in advance. Greetings, Manuel