We usually want to get rid of the securable-module part in the filename of entries in the stack. Sadly this doesn't work at the moment so in our reports we see something like that: http://mozmill-daily.blargon7.com/#/functional/report/c1ae8473ee5b384b83bbfde3315236f6 Assert_waitFor@resource://mozmill/stdlib/securable-module.js -> file:///home/mozauto/jenkins/workspace/mozilla-aurora_functional/data/mozmill-tests/lib/assertions.js:555:10, So what we do not need is "@resource://mozmill/stdlib/securable-module.js -> " Maybe the existent regex calls still miss something more: https://github.com/mozilla/mozmill/blob/master/mozmill/mozmill/extension/resource/modules/stack.js#L24
Mozmill will reach its end of life soon. We are currently working on getting all the tests for Firefox ported to Marionette. For status updates please see bug 1080766.