1 files changed, 3 insertions, 0 deletions
diff --git a/toolkit/components/telemetry/tests/marionette/harness/telemetry_harness/runner.py b/toolkit/components/telemetry/tests/marionette/harness/telemetry_harness/runner.py
index 37a91023ce..29b03e4f55 100644
--- a/toolkit/components/telemetry/tests/marionette/harness/telemetry_harness/runner.py
+++ b/toolkit/components/telemetry/tests/marionette/harness/telemetry_harness/runner.py
@@ -52,6 +52,9 @@ class TelemetryTestRunner(BaseMarionetteTestRunner):
                 # Disable Normandy a little harder (bug 1608807).
                 # This should also disable Nimbus.
                 "app.shield.optoutstudies.enabled": False,
+                # Bug 1789727: Keep the screenshots extension disabled to avoid
+                # disabling the addon resulting in extra subsessions
+                "screenshots.browser.component.enabled": False,
             }
         )