(Sorry, I don't write in English very well) When I comment or post some content in Facebook, that post is repeated infinitely until the page is refreshed.
-Firefox OS simulator 2.0pre6, Windows7, Waterfox 18.0.1
Thanks for reporting this problem! However, the Simulator is intended to be a test environment for app developers, and this issue tracker only tracks issues with testing apps. It doesn't track other problems with Firefox OS. Report those in the Boot2Gecko issue tracker, making sure to note that you noticed the problem in the Simulator.