Unity web player crashing browser

I have Mac OS 10.9 and whenever i try to use quest for r2d2 game the unity web player crashes firefox and does the same with safari. I can’t find an answer in the forums but may have overlooked it. Thanks

Sorry rutter not a developer and not using webplayer for anything else. Its my sons lego star wars games that requires the player and despite trying with firefox and safari and reloading the browser it still crashes. It the latest version from web player from the unity page. I see it was previously a documented issue last year but not sure what the answer is. Thanks all the same