--- a/taskcluster/ci/test/tests.yml
+++ b/taskcluster/ci/test/tests.yml
@@ -906,23 +906,20 @@ mochitest-valgrind:
         extra-options:
             - --mochitest-suite=valgrind-plain
 
 mochitest-webgl:
     description: "Mochitest webgl run"
     suite: mochitest/mochitest-gl
     treeherder-symbol: tc-M(gl)
     virtualization: virtual-with-gpu
-    worker-type:
-        by-test-platform:
-            windows10-64.*: buildbot-bridge/buildbot-bridge
-            default: null
     chunks:
         by-test-platform:
             android.*: 10
+            windows.*: 8
             default: 3
     e10s:
         by-test-platform:
             windows7-32/debug: both
             default: true
     loopback-video: true
     max-run-time:
         by-test-platform: