I remember it enabled by default when installing chrome on my old macbook pro but for some reason it is disabled by default using chrome and 2011 mbp. Try going to ‘about:flags’ url and enabling “GPU accelerated compositing”, works for me now. You can run Firefox using this command line: In Firefox 4 and 5 (not in Firefox 6 and newer), on X11 platforms (like Linux), the driver blacklist is implemented differently and bypassing it requires you to also define the MOZ_GLX_IGNORE_BLACKLIST environment variable. ![]() On Windows Vista and Windows 7, to force-enable Direct2D Content Acceleration, go to about:config and set -enabled=true. To force-enable Layers Acceleration, go to about:config and set -enabled=true. To force-enable WebGL, go to about:config and set webgl.force-enabled=true. There usually are good reasons why features are blocked. You can whitelist sites to allow WebGL on them. If you would like to forcibly enable a graphics feature that is blocked on your system, follow these instructions. With the ScriptSafe extension, you can enable Block WebGL Fingerprinting, which will effectively disable WebGL. Firefox about:config How to force-enable blocked graphics features Premises: windows XP Browser version high enough to support WebGL. Then enable WebGL: Go to chrome://flags Ensure that Disable WebGL is not activated (youll 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: Here you will have to change Default to Enabled in the drop down. ![]() The problem is that the drawing context of the webgl canvas appears to get lost in Chrome after I switch tabs. I've got a web application that uses webGL canvas to do some basic image manipulation and later copies the webGl canvas to a 2d canvas in order to save off the image data. Windows XP has a graphic card blacklist to prevent crash caused by webGL, so we should set browser to ignore the blacklist. I'm having an unexpected issue with Chrome (current). ![]() how to get over this kind of error on windows XP: “sorry, graphic card does not support WebGL”
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