Firefox and graphic acceleration (Google Earth Web)

Hi all!

I was recently trying out Google Earth Web (https://earth.google.com/web/)
and found out it is almost unusable as it is very slow.

I don't have any other noticeable problems in Firefox: other web pages
render fine and fast, I can reproduce HD videos in Youtube without any
issues, etc.

I use:
nvidia-driver-470-470.256.02.1402000_1
firefox-144.0_2,2

and I load nvidia-modeset from /etc/rc.conf

I tried to install Chromium and it works very well with Google Earth out of
the box, so I'm wondering if I'm missing something in my Firefox
configuration (it's basically the default configuration).

Any ideas?