Check for WebGL support

Go to https://browserleaks.com/webgl

OR : https://get.webgl.org/

How to Enable or Disable WebGL in Your Web Browser

WebGL in Firefox

WebGL is supported and enabled by default since Firefox 4 and Firefox for Android 19.

To enable or disable WebGL in Firefox, follow the simple steps:

In the address bar, type about:config, without any http:// or www
Click the button labeled «I'll be careful, I promise!»
In Search field, enter webgl.disabled string
Toggle webgl.disabled to true to disable WebGL, or to false to enable WebGL, please do not confuse.

WebGL 2.0:

To enable WebGL 2 in Firefox, go to about:config and toggle webgl.enable-webgl2 to true.

WebGL 2 is enabled by default since Firefox 51.

WebGL in Chrome

WebGL is supported and enabled by default since Chrome 8.

To disable WebGL, start Google Chrome with one of these command-line options:

--disable-webgl turn off WebGL
--disable-3d-apis turn off all client-visible 3D APIs, in particular WebGL and Pepper 3D

These instructions are valid for all Chromium-based web browsers, in the same way you can setup WebGL in Opera and Vivaldi.

WebGL 2.0:

To enable WebGL 2 in Chrome, open chrome://flags/, find WebGL 2.0 flag, and toggle it to Enabled.

WebGL 2 is enabled by default since Chrome 56.

WebGL in Safari

WebGL is available and enabled by default since Safari 8.

Safari — the only browser that has the ability to Ask before running WebGL scripts in a random websites. You can easily enable or disable WebGL globally or for a specific website, by going the menu Preferences → Security → Allow WebGL → Website Settings.

WebGL 2.0:

WebGL 2 is available in Safari 10 Technology Previews, it can be enabled via the "Experimental Features" develop menu.

WebGL in Edge and IE

WebGL enabled by default since IE 11, and there is no way to turn it off.

WebGL 2.0: so far no info about supporting WebGL 2 in Edge or IE.