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In order for your browser to display 3D objects, it must, firstly, support the possibility and, secondly, the hardware and the operating system must make the technology available.
Is your system running the latest version?
You must generally ensure that you are running the latest versions of browser , operating system and graphics driver.
Internet Explorer 
Microsoft Internet Explorer only supports WebGL from version 11 onwards. This version is available for Windows 7 and later versions of Microsoft’s operating system.
Mozilla Firefox 
Mozilla Firefox has supported WebGL since version 4. The mobile version for Android also supports WebGL.
If there is no 3D display even though the hardware and software requirements are met, you can try activating the feature as follows:
- Enter "about:config" in the input line
- Enter "webgl" in the search field
- Switch option "webgl.force-enabled" to "true" by double-clicking on it (possibly also "webgl.prefer-native-gl")
The settings will be become active immediately – the browser does not need to be restarted.
Google Chrome 
Google Chrome has supported WebGL since version 9. The mobile version for Android also supports WebGL.
If there is no 3D display even though the hardware and software requirements are met, you can try activating the feature as follows:
- Enter "chrome://flags" in the input line
- Search for "webgl" on the page
- Switch off "Deactivate WebGL" by clicking on "Deactivate"; this will switch on the use of WebGL
The browser must be restarted in order for the settings to become active. A corresponding button should be displayed at the bottom of the screen.
Apple Safari under MacOS 
If you wish to use WebGL in Safari under MacOS, it may have to be activated first.
- Activate option "Activate menu for developers" "Advanced" tab in settings, and then close the settings
- Activate WebGL in the new menu item "Developers"
The browser must be restarted in order for the settings to become active.
Note: WebGL is not available in the Safari browser under Windows.
Apple Safari under iOS 
Safari for mobile devices (iPad and iPhone) supports WebGL from iOS 8 onwards.