WebGL not working on Safari 18

I can't get WebGL to work on Safari 18 (actually, I don't think it worked on any previous version either). According to multiple websites I looked at, I am supposed to activate the Develop menu, then select "Experimental Features" and from there check WebGL 2.0. I have the Develop menu, but there is no Experimental Features sub-menu. Did Apple move it somewhere?

I went to Webkit.org, and it lists new features for WebGL in Safari 18, but I still can't figure out how to turn it on!

I am using Safari 18.0.1 and Sequoia 15.0.1 on an M1 iMac.

Posted on Oct 17, 2024 8:30 AM

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JSA271 Author

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22 points

Posted on Oct 30, 2024 5:05 AM

I found a solution for this on Reddit. It's located here: https://www.reddit.com/r/MacOS/comments/xclt8a/webglwebgl2_disabled_in_safari_even_after/

Give Terminal app Full Disk Access permission in the Settings->Privacy&Security pane, and after that run in Terminal:

defaults read com.apple.Safari WebKitPreferences.webGLEnabled

(change Safari to SafariTechnologyPreview if using STP)

if it shows 0, then do defaults write com.apple.Safari WebKitPreferences.webGLEnabled 1

Restart Safari, webgl should be enabled now.

It worked perfectly. Now what I would really like to know is why WebGL is not enabled by default in Safari, or at least accessible through settings.

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WebGL not working on Safari 18

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