diff --git a/karma.conf.cjs b/karma.conf.cjs
index 5e98270..6d6e7fc 100644
--- a/karma.conf.cjs
+++ b/karma.conf.cjs
@@ -92,7 +92,10 @@ module.exports = function (config) {
           'dom.w3c_touch_events.enabled': 1,
           'dom.events.asyncClipboard.clipboardItem': true,
           'webgl.disabled': false,
-          'webgl.force-enabled': true
+          'webgl.force-enabled': true,
+          'webgl.force-layers-readback': true,
+          'layers.acceleration.disabled': true,
+          'gfx.webrender.all': false
         }
       }
     },