

Safari does write hierarchy into the ~/Library/Containers/ folder and it you remove that specific Safari folder, and then launch Safari normally, your webgl issue may resolve itself. To do the latter, you Show Develop menu on menu bar from Safari Preferences : Advanced, and then follow that with ⌥⌘E which does clear the browser cache (including cookies). Pressing the shift key when launching Safari simply prevents it from loading its last saved application state, and does not clear any caches. In searching the forums, I did find this post from where VikingOSX gave the following fix. The test runs fine on Firefox so it's definitely a Safari problem. If possible, please ensure that you are running the latest drivers for your video card. While your browser seems to support WebGL, it is disabled or unavailable. I have confirmed that WebGL is enabled under the Developer - Experimental features list but when I run a test from I get the following error: I'm running Big Sur 11.6.1 but have had this problem for quite some time.

I need some help from the community on getting WebGL to run on Safari on my Mac. WebGL not on working on Safari on Mac works on other browsers.
