DATE issues with IE and FF

I do have SSRS report which works fine in IE and show date parameter as 03/01/2016 as Start date and 06/01/2016 as End Date. But When I open the same report in FF it shows me 03/Jan/2016 as Start Date and 06/Jan/2016 as End Date.This dates I have kept it as 3 months range.How to resolve this? Please help.