Passing url parameters

Hi ,
I can’t use url parameters which passed by firefox .

For example :

"http://localhost:51000/cis/servlet/StartCISPage?PAGEURL=/ADFWorkplace/workplace.html&workplaceInfoClass=com.m2m.adfmng.workplace.ADFMngWorkplaceInfoProvider"

The code that used for test is :

public MFWorkplaceInfo getWorkplaceInfo(IMFWorkplaceBootstrapInfo env) {

                            String clsName = (String) env.getInitParamMap().get("workplaceInfoClass");
    …
   ...
}

I can get workplaceInfoClass parameter when I use this url on internet explorer.But on firefox , parameter value seems null.
( My firefox version is 1.0.7 and CAI version is 142 .)

Can anyone confirm this problem ?

Thanks.