menu on page load

Hi there,

sorry for my english. I will do my best.
I have installed the last version of EDS Responsive Menu on xxx. In the GC everything is fine but if you visit the page with FF you can see the menu shortly on first time. It`s in the area of the revolution slider. The mobile menu is see for a very short time… like a lightning/flash (i don`t know the word 🙁 )
Do you can help me?
br

EDIT…

Now, everythign is fine :=)

I have add a display: none;