WEBGL not working inspite of being displayed in graphics renderer row: AMD FIREPRO W5100

I need to work with Onshape/Simscale and I can't because they say that my browser does not support WebGL I have updated graphics card driver to latest version by AMD and it looks that it is not blacklisted by firefox. I tried the fix provided by Simscale which did not work. Here https://www.simscale.com/docs/content/support/troubleshooting.html#webgl-not-enabled uploading pictures is not working Please help asap.