If your browser does not supports WebGL or it is disabled by default , follow these steps to enable/disable WebGL in your browser.Check WebGL support
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:
Step 1. In the address bar, type about:config , without any http:// or www
Step 2. Click the button labeled "I accept the risk!"
Step 3. In Search field, enter webgl.disabled string
Step 4. Toggle webgl.disabled to true to disable WebGL, or to false to enable WebGL, please do not confuse.
To enable WebGL 2 in Firefox, go to about:config and toggle webgl.enable-webgl2 to true.
Note: WebGL 2 is enabled by default since Firefox 51.
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
To enable WebGL 2 in Chrome, open chrome://flags/ , find WebGL 2.0 flag, and toggle it to Enabled.
Note: WebGL 2 is enabled by default since Chrome 56.
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 is available in Safari 10 Technology Previews, it can be enabled via the "Experimental Features" develop menu.
WebGL is only supported on Internet Explorer 11 and later.
There is no way to turn it off.
If you are running Windows 8 or Windows 7, update your Internet Explorer to version 11.
So far no info about supporting WebGL 2 in Edge or IE.
WebGL is supported and enabled by default since alpha version of Opera 12.
To enable or disable WebGL in Opera, follow these simple steps:
Step 1. Go to about:config
Step 2. On the left hand menu, click "Browser"
Step 3. Click the Show advanced settings checkbox
Step 4. In the System section, ensure the Use hardware acceleration when available checkbox is checked
If Use hardware acceleration when available checkbox is checked then it indicates that webGL is enabled and if unchecked indicates webGL is disabled.
(you'll need to relaunch Opera for any changes to take effect)