--- a/testing/mozbase/mozrunner/mozrunner/base/browser.py
+++ b/testing/mozbase/mozrunner/mozrunner/base/browser.py
@@ -54,19 +54,16 @@ class GeckoRuntimeRunner(BaseRunner):
             self.cmdargs.append('-foreground')
         if mozinfo.isMac and '-foreground' not in self.cmdargs:
             # runner should specify '-foreground' on Mac; see
             # https://bugzilla.mozilla.org/show_bug.cgi?id=916512
             self.cmdargs.append('-foreground')
 
         # Bug 775416 - Ensure that binary options are passed in first
         command[1:1] = self.cmdargs
-
-        if hasattr(self.app_ctx, 'wrap_command'):
-            command = self.app_ctx.wrap_command(command)
         return command
 
     def start(self, *args, **kwargs):
         # ensure the profile exists
         if not self.profile.exists():
             self.profile.reset()
             assert self.profile.exists(), "%s : failure to reset profile" % self.__class__.__name__