Page fresh doesn't work

I am using the following code to refresh may web page every 2 minutes. 
meta http-equiv="refresh" content="120;~/Dispatch/DispatchOrderList.aspx"
It works fine with IE but fails with Firefox.  This is the error message:
The resource cannot be found. Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is t ...