diff --git a/testing/mozbase/mozrunner/mozrunner/base/browser.py b/testing/mozbase/mozrunner/mozrunner/base/browser.py
index a7914989e887..998e4ccc5e1a 100644
--- a/testing/mozbase/mozrunner/mozrunner/base/browser.py
+++ b/testing/mozbase/mozrunner/mozrunner/base/browser.py
@@ -76,6 +76,5 @@ class GeckoRuntimeRunner(BaseRunner):
                 # hide the crash reporter window
                 self.env["MOZ_CRASHREPORTER_NO_REPORT"] = "1"
             self.env["MOZ_CRASHREPORTER"] = "1"
-            self.env["MOZ_CRASHREPORTER_SHUTDOWN"] = "1"
 
         BaseRunner.start(self, *args, **kwargs)