Hey Bench,
Thanks for your reply.
Unfortunately is the Shockwave Player since April 9, 2019 out of support, so there will be no way to get any help from Adobe about this product.
There are not much browsers left which do support the NPAPI plugins anymore only Pale Moon and Basilisk which both share the same codebase.
Maybe it would be better when I try to get in touch with the browser developers.