--- a/taskcluster/ci/build/linux.yml
+++ b/taskcluster/ci/build/linux.yml
@@ -50,17 +50,17 @@ linux64-shippable/opt:
         symbol: B
     worker-type: b-linux
     worker:
         docker-image: {in-tree: "debian7-amd64-build"}
         max-run-time: 36000
     run:
         using: mozharness
         comm-checkout: true
-        actions: [build, check-test]
+        actions: [disabled, build, check-test]
         config-paths:
             - comm/mozharness
         config:
             - builds/taskcluster_base_thunderbird.py
             - builds/releng_base_linux_64_builds.py
             - taskcluster_nightly.py
         script: "mozharness/scripts/fx_desktop_build.py"
         need-xvfb: true
@@ -154,17 +154,17 @@ linux-shippable/opt:
         symbol: B
     worker-type: b-linux
     worker:
         docker-image: {in-tree: "debian7-i386-build"}
         max-run-time: 36000
     run:
         using: mozharness
         comm-checkout: true
-        actions: [build, check-test]
+        actions: [disabled, build, check-test]
         config-paths:
             - comm/mozharness
         config:
             - builds/taskcluster_base_thunderbird.py
             - builds/releng_base_linux_32_builds.py
             - taskcluster_nightly.py
         script: "mozharness/scripts/fx_desktop_build.py"
         need-xvfb: true

--- a/taskcluster/ci/build/macosx.yml
+++ b/taskcluster/ci/build/macosx.yml
@@ -101,17 +101,17 @@ macosx64-shippable/opt:
     worker:
         max-run-time: 36000
         env:
             # We just use the browser manifest, since we don't need anything different
             TOOLTOOL_MANIFEST: "browser/config/tooltool-manifests/macosx64/cross-releng.manifest"
     run:
         using: mozharness
         comm-checkout: true
-        actions: [build]
+        actions: [disabled, build]
         config-paths:
             - comm/mozharness
         config:
             - builds/taskcluster_base_thunderbird.py
             - builds/releng_base_mac_64_cross_builds.py
             - taskcluster_nightly.py
         script: "mozharness/scripts/fx_desktop_build.py"
         tooltool-downloads: internal

--- a/taskcluster/ci/build/windows.yml
+++ b/taskcluster/ci/build/windows.yml
@@ -58,17 +58,17 @@ win32-shippable/opt:
         symbol: B
         tier: 1
     worker-type: b-win2012
     worker:
         max-run-time: 10800
         env:
             TOOLTOOL_MANIFEST: "comm/mail/config/tooltool-manifests/win32/releng.manifest"
     run:
-        actions: [build, check-test]
+        actions: [disabled, build, check-test]
         options: [append-env-variables-from-configs]
         script: mozharness/scripts/fx_desktop_build.py
         config:
             - builds/taskcluster_base_thunderbird.py
             - builds/taskcluster_base_windows.py
             - builds/taskcluster_base_win32.py
             - taskcluster_nightly.py
         extra-config:
@@ -160,17 +160,17 @@ win64-shippable/opt:
         symbol: B
         tier: 1
     worker-type: b-win2012
     worker:
         max-run-time: 10800
         env:
             TOOLTOOL_MANIFEST: "comm/mail/config/tooltool-manifests/win64/releng.manifest"
     run:
-        actions: [build, check-test]
+        actions: [disabled, build, check-test]
         options: [append-env-variables-from-configs]
         script: mozharness/scripts/fx_desktop_build.py
         config:
             - builds/taskcluster_base_thunderbird.py
             - builds/taskcluster_base_windows.py
             - builds/taskcluster_base_win64.py
             - taskcluster_nightly.py
         extra-config: