} else {
usage("unrecognized argument " + arg);
System.exit(1);
}
}
if (configuration.userJSInjection() && !configuration.getProxyInjectionModeArg()) {
System.err.println("User js injection can only be used w/ -proxyInjectionMode");
System.exit(1);
}
if (configuration.getProfilesLocation() != null && configuration.getFirefoxProfileTemplate() != null) {
System.err.println("Cannot specify both a profileDirectory and a firefoxProfileTemplate");