Chrome
First, enable hardware acceleration:
Go to chrome://settings
Click the Advanced ▼ button at the bottom of the page
In the System section, ensure the Use hardware acceleration when available checkbox is checked (you'll need to relaunch Chrome for any changes to take effect)
Then enable WebGL:
Go to chrome://flags
Ensure that Disable WebGL is not activated (you'll need to relaunch Chrome for any changes to take effect)
In newer versions, this option of Disable WebGL will not be available, you will instead have to search for WebGL 2.0 (or some different version) that looks like this:
enter image description here
Here you will have to change Default to Enabled in the drop down.
[Try this if above doesn't work] Enable - Override software rendering list
Then inspect the status of WebGL:
Go to chrome://gpu
Inspect the WebGL item in the Graphics Feature Status list. The status will be one of the following:
Hardware accelerated — WebGL is enabled and hardware-accelerated (running on the graphics card).
Software only, hardware acceleration unavailable — WebGL is enabled, but running in software. See here for more info: "For software rendering of WebGL, Chrome uses SwiftShader, a software GL rasterizer."
Unavailable — WebGL is not available in hardware or software.
If the status is not "Hardware accelerated", then the Problems Detected list (below the the Graphics Feature Status list) may explain why hardware acceleration is unavailable.
If your graphics card/drivers are blacklisted, you can override the blacklist. Warning: this is not recommended! (see blacklists note below). To override the blacklist:
Go to chrome://flags
Activate the Override software rendering list setting (you'll need to relaunch Chrome for any changes to take effect)
For more information, see: Chrome Help: WebGL and 3D graphics.