--- a/testing/taskcluster/tasks/tests/fx_linux64_jittests.yml
+++ b/testing/taskcluster/tasks/tests/fx_linux64_jittests.yml
@@ -1,18 +1,17 @@
 ---
 $inherits:
   from: 'tasks/tests/fx_desktop_unittest.yml'
 task:
   metadata:
     name: '[TC] Linux64 jittests {{chunk}}'
     description: Jittests run {{chunk}}
   payload:
-    maxRunTime: 7200
   extra:
     chunks:
-      total: 2
+      total: 6
     suite:
       name: jittest
       flavor: jittest-chunked
     treeherder:
       groupName: Desktop jittests
       symbol: Jit{{chunk}}

--- a/testing/taskcluster/tasks/tests/fx_linux64_jsreftest.yml
+++ b/testing/taskcluster/tasks/tests/fx_linux64_jsreftest.yml
@@ -1,15 +1,17 @@
 ---
 $inherits:
   from: 'tasks/tests/fx_desktop_unittest.yml'
 task:
   metadata:
-    name: '[TC] Linux64 jsreftest'
-    description: Jsreftest run
+    name: '[TC] Linux64 jsreftest {{chunk}}'
+    description: Jsreftest run {{chunk}}
   extra:
+    chunks:
+      total: 2
     suite:
       name: reftest
       flavor: jsreftest
     treeherder:
       groupName: Desktop jsreftest
       groupSymbol: tc-R
-      symbol: J
+      symbol: J{{chunk}}