--- a/taskcluster/ci/toolchain/linux.yml
+++ b/taskcluster/ci/toolchain/linux.yml
@@ -19,17 +19,16 @@ linux64-clang:
         using: toolchain-script
         script: build-clang-linux.sh
         resources:
             - 'build/build-clang/**'
             - 'taskcluster/scripts/misc/tooltool-download.sh'
         toolchain-artifact: public/build/clang.tar.xz
     toolchains:
         - linux64-gcc
-        - linux64-sccache
 
 linux64-clang-tidy:
     description: "Clang-tidy build"
     index:
         product: static-analysis
         job-name: linux64-clang-tidy
     treeherder:
         kind: build
@@ -48,17 +47,16 @@ linux64-clang-tidy:
         resources:
             - 'build/clang-plugin/**'
             - 'build/build-clang/**'
             - 'taskcluster/scripts/misc/tooltool-download.sh'
         toolchain-artifact: public/build/clang-tidy.tar.xz
     toolchains:
         - linux64-clang
         - linux64-gcc
-        - linux64-sccache
 
 linux64-gcc:
     description: "GCC toolchain build"
     treeherder:
         kind: build
         platform: toolchains/opt
         symbol: TL(gcc)
         tier: 1
@@ -107,17 +105,16 @@ linux64-cctools-port:
     run:
         using: toolchain-script
         script: build-cctools-port.sh
         resources:
             - 'taskcluster/scripts/misc/tooltool-download.sh'
         toolchain-artifact: public/build/cctools.tar.xz
     toolchains:
         - linux64-clang
-        - linux64-sccache
 
 linux64-hfsplus:
     description: "hfsplus toolchain build"
     treeherder:
         kind: build
         platform: toolchains/opt
         symbol: TL(hfs+)
         tier: 1
@@ -131,17 +128,16 @@ linux64-hfsplus:
         using: toolchain-script
         script: build-hfsplus-linux.sh
         resources:
             - 'build/unix/build-hfsplus/**'
             - 'taskcluster/scripts/misc/tooltool-download.sh'
         toolchain-artifact: public/build/hfsplus-tools.tar.xz
     toolchains:
         - linux64-clang
-        - linux64-sccache
 
 linux64-libdmg:
     description: "libdmg-hfsplus toolchain build"
     treeherder:
         kind: build
         platform: toolchains/opt
         symbol: TL(libdmg-hfs+)
         tier: 1

--- a/taskcluster/ci/toolchain/macosx.yml
+++ b/taskcluster/ci/toolchain/macosx.yml
@@ -22,17 +22,16 @@ macosx64-clang:
         resources:
             - 'build/build-clang/**'
             - 'taskcluster/scripts/misc/tooltool-download.sh'
         toolchain-artifact: public/build/clang.tar.xz
     toolchains:
         - linux64-cctools-port
         - linux64-clang
         - linux64-gcc
-        - linux64-sccache
 
 macosx64-clang-tidy:
     description: "Clang-tidy build"
     index:
         product: static-analysis
         job-name: macosx64-clang-tidy
     treeherder:
         kind: build
@@ -53,17 +52,16 @@ macosx64-clang-tidy:
             - 'build/clang-plugin/**'
             - 'build/build-clang/**'
             - 'taskcluster/scripts/misc/tooltool-download.sh'
         toolchain-artifact: public/build/clang-tidy.tar.xz
     toolchains:
         - linux64-cctools-port
         - linux64-clang
         - linux64-gcc
-        - linux64-sccache
 
 macosx64-cctools-port:
     description: "cctools-port toolchain build"
     treeherder:
         kind: build
         platform: toolchains/opt
         symbol: TM(cctools)
         tier: 1
@@ -79,9 +77,8 @@ macosx64-cctools-port:
         tooltool-downloads: internal
         resources:
             - 'taskcluster/scripts/misc/tooltool-download.sh'
         toolchain-artifact: public/build/cctools.tar.bz2
     toolchains:
         - linux64-cctools-port
         - linux64-clang
         - linux64-gcc
-        - linux64-sccache

--- a/taskcluster/ci/toolchain/windows.yml
+++ b/taskcluster/ci/toolchain/windows.yml
@@ -16,18 +16,16 @@ win32-clang-cl:
             TOOLTOOL_MANIFEST: "browser/config/tooltool-manifests/win32/build-clang-cl.manifest"
     run:
         using: toolchain-script
         script: build-clang32-windows.sh
         resources:
             - 'build/build-clang/**'
             - 'taskcluster/scripts/misc/build-clang-windows-helper32.sh'
         toolchain-artifact: public/build/clang.tar.bz2
-    toolchains:
-        - win64-sccache
 
 win64-clang-cl:
     description: "Clang-cl toolchain build"
     treeherder:
         kind: build
         platform: toolchains/opt
         symbol: TW64(clang-cl)
         tier: 2
@@ -38,18 +36,16 @@ win64-clang-cl:
             TOOLTOOL_MANIFEST: "browser/config/tooltool-manifests/win32/build-clang-cl.manifest"
     run:
         using: toolchain-script
         script: build-clang64-windows.sh
         resources:
             - 'build/build-clang/**'
             - 'taskcluster/scripts/misc/build-clang-windows-helper64.sh'
         toolchain-artifact: public/build/clang.tar.bz2
-    toolchains:
-        - win64-sccache
 
 win32-clang-tidy:
     description: "Clang-tidy toolchain build"
     index:
         product: static-analysis
         job-name: win32-clang-tidy
     treeherder:
         kind: build
@@ -63,18 +59,16 @@ win32-clang-tidy:
             TOOLTOOL_MANIFEST: "browser/config/tooltool-manifests/win32/build-clang-cl.manifest"
     run:
         using: toolchain-script
         script: build-clang-tidy32-windows.sh
         resources:
             - 'build/build-clang/**'
             - 'taskcluster/scripts/misc/build-clang-windows-helper32.sh'
         toolchain-artifact: public/build/clang-tidy.tar.bz2
-    toolchains:
-        - win64-sccache
 
 win64-clang-tidy:
     description: "Clang-tidy toolchain build"
     index:
         product: static-analysis
         job-name: win64-clang-tidy
     treeherder:
         kind: build
@@ -88,18 +82,16 @@ win64-clang-tidy:
             TOOLTOOL_MANIFEST: "browser/config/tooltool-manifests/win32/build-clang-cl.manifest"
     run:
         using: toolchain-script
         script: build-clang-tidy64-windows.sh
         resources:
             - 'build/build-clang/**'
             - 'taskcluster/scripts/misc/build-clang-windows-helper64.sh'
         toolchain-artifact: public/build/clang-tidy.tar.bz2
-    toolchains:
-        - win64-sccache
 
 win64-sccache:
     description: "sccache toolchain build"
     treeherder:
         kind: build
         platform: toolchains/opt
         symbol: TW64(sccache)
         tier: 1