I think your issue is caused by using the variable "event" where it should be "e". Looks like that's my fault:
https://github.com/tieniber/TooltipLink/blob/master/src/TooltipLink/widget/FormTooltip.js#L158
EDIT: I've updated the code, please try this widget:
https://github.com/tieniber/TooltipLink/blob/master/dist/TooltipLink.mpk?raw=true
problem is Formtooltip.js, firefox browser not recognize event..
i try this code "e.preventdefault()",but its not working
Any solutions..?