diff --git a/taskcluster/ci/test/mochitest.yml b/taskcluster/ci/test/mochitest.yml
index 0dd40895d2d2..ccc2c74e58e0 100644
--- a/taskcluster/ci/test/mochitest.yml
+++ b/taskcluster/ci/test/mochitest.yml
@@ -109,10 +109,10 @@ mochitest-browser-chrome:
             default: 7
     max-run-time:
         by-test-platform:
-            linux64-.*cov/opt: 7200
+            linux64-ccov/debug: 7200
             windows7-32/debug: 5400
             windows10-64/debug: 5400
-            windows10-64-ccov/debug: 7200
+            windows10-64-ccov/debug: 10800
             windows10-aarch64/*: 7200
             macosx.*64-ccov/debug: 10800
             linux.*/debug: 5400