prevent a new intent from being repeated on android

Hi, I'm trying to create an intent in android, but the objective is to check if the intent exists and if it exists, destroy it and call a new intent with different parameters, this is the calling code.

public void Safesearch(String urlgoogle){
        String urlString=(urlgoogle.concat("&safe=active"));
        Intent intent=new Intent(Intent.ACTION_VIEW,Uri.parse(urlString));
        intent.setPackage("com.android.chrome");
        try {
            startActivity(intent);
        } catch (ActivityNotFoundException ex) {
            intent.setPackage(null);
            startActivity(intent);
        }
    }