Please post the link and a screenshot
I contacted Lenovo support where I was told to change a setting in Firefox as suggested by Firefox on their website help to : disable the hardware acceleration in the FireFox browser settings. That fixed the problem. I can send a picture of what was happening- the problem was for any 3D frame from GeoGebra in Firefox just set up with default settings on my new Lenovo Legion 5 machine. The 3D frame would be entirely black.
Thanks for your concern. Martin
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