nsresult rv = mPrefs->CopyCharPref("timebomb.update_url", &string);
nsresult rv = mPrefs->CopyCharPref("timebomb.timebombURL", &string);
nsTimeBomb::GetTimebombURL(char* *url){    if (!mPrefs) return NS_ERROR_NULL_POINTER;        char* string;    nsresult rv = mPrefs->CopyCharPref("timebomb.update_url", &string);    if (NS_SUCCEEDED(rv))    {        *url = (char*)nsAllocator::Clone(string, (strlen(string)+1)*sizeof(char));                PL_strfree(string);        if(*url)            return NS_ERROR_OUT_OF_MEMORY;        return NS_OK;    }       string = "http://www.mozilla.org/projects/seamonkey/";    *url = (char*)nsAllocator::Clone(string, (strlen(string)+1)*sizeof(char));        if(!*url)        return NS_ERROR_OUT_OF_MEMORY;    return NS_OK;}