You've got duplicate html in the navbar template for the quicklinks menu.
- In IE it causes two drop down arrows.
- In Opera it works fine
- In firefox it causes a page refresh with the nojs (sometimes, its weird)
I'll give you both instances if you want, but I'm sure someone looking between lines 129 and 279 can find the issue.
Please make the change password and email DO Something instead of refresh the page, at least link it to the correct place where we can change our email and password.