How to disable WebGL in Firefox 4

by Venkat on December 23, 2010

in How to,tips and tricks

Firefox 4 Beta 8 released with WebGL activated by default,  WebGL brings 3D graphics to Firefox 4 opening the door for developers to create vivid games and new kinds of visualizations and experiences for the web.  Mozilla claims Firefox 4 supports WebGL for large number of built-in graphics cards on Mac and Windows.

If you are experiencing any issues in trying the Demos for WebGL in Firefox, check you  installed latest DirectX drivers from Microsoft and another case your graphic card should support OpenGL 2.0 drivers also.  If you wish you can disable WebGL in Firefox 4, here is how.

Disabling WebGL in Firefox 4

1. Type about:config in Firefox address bar and continue with warning dialog.

2. Type Webgl in the Filter box double click “ webgl.enabled_for_all_sites”  and set its value to False.

3. Restart Firefox browser, WebGL is now disabled in Firefox 4.

Update 11/05/2011 : In Firefox 4.0.1 “webgl.enabled_for_all_sites” preference has been changed to “webgl.disabled”. Double click Webgl.disabled entry and turn its value into “True”.

Also read how to disable WebGL in Chrome (just posted).

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{ 3 comments }

Mike Gallagher May 10, 2011 at 10:59 pm

the Preference Name: webgl.enabled_for_all_sites does not exist in my FireFox 4.0.1 Does that mean that my FireFox is not vulnerable to http://www.contextis.com/resources/blog/webgl/

JD May 10, 2011 at 11:56 pm

In Firefox 4.0.1 on Windows, the preference is named webgl.disabled. It has a default value of false.

Venkat May 11, 2011 at 5:59 am

Yep, updated the post.

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