Why are threejs apps not running in mozilla firefox

Question

I have recently done a fresh install of Linux SUSE and now Firefox is not displaying threejs.

I have updated the

about:config webgl.force-enabled to true

The browser console gives the following error message.

THREE.WebGLRenderer 73 three.min.js:578:133
THREE.WebGLRenderer: Error creating WebGL context. three.min.js:581:370

Error: WebGL: Error during native OpenGL init. three.min.js:581:104
Error: WebGL: WebGL creation failed. three.min.js:581:104
Error: WebGL: Error during native OpenGL init. three.min.js:581:129
Error: WebGL: WebGL creation failed. three.min.js:581:129
Error: WebGL: Error during native OpenGL init. three.min.js:581:189
Error: WebGL: WebGL creation failed. three.min.js:581:189
TypeError: a is null

I would like to know what I need to do to get my page to display the three.js scene appropriately without hacking my system as obviously I require the page to display on all browsers.

Answer 1

What version of firefox ? Assure its 43 or above ... have you been mucking about with settings ? to reset firefox settings to default go to URL

about:support

to factory reset all your settings including WebGL hit

Give Firefox a tune up  --> refresh firefox

... below is a screenshot of what this gives you if you want to manually change WebGL pertinent settings ... in URL enter :

about:config

then search on webgl to give you this listing of default settings :

WebGL does provide for bleeding edge settings which can/do cause browsers/graphicsCards to barf ... so try to run a simple WebGL site ... let us know how you get on

Answer 2

I found a forum post on line that clued me into the existence of gfx.crash-guard.status.glcontext which is what turns off WebGL after a crash. Resetting it as shown below got me running again without touching any other settings.

Edit: I just noticed that on my macbook pro, this value becomes "user set" to "2" (not 3 as shown above) the moment I reload the about:support or the page containing WebGL code (but the web page renders ok and web GL stuff still seems to work).