not working in firefox on linux

have tried it in several linux distros (i.e. ubuntu) + google android and doesn't work (at least on the demo site). The name "standard" is not really helping it either. Something like this should have better crossplatform integration as every other WYSIWYG Editor i tried had worked fine in firefox on linux.

was specially looking forward for it for my site visitors , but guess i'll go with something else for now