0:07.29 pid:4343 1520265793116	addons.xpi	WARN	Add-on shield-recipe-client@mozilla.org is missing bootstrap method shutdown
 0:07.30 pid:4343 1520265793120	addons.xpi	WARN	Exception running bootstrap method shutdown on activity-stream@mozilla.org: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIObserverService.removeObserver]"  nsresult: "0x80004005 (NS_ERROR_FAILURE)"  location: "JS frame :: resource://activity-stream/lib/SnippetsFeed.jsm :: uninit :: line 168"  data: no] Stack trace: uninit()@resource://activity-stream/lib/SnippetsFeed.jsm:168
 0:07.30 pid:4343 onAction()@resource://activity-stream/lib/SnippetsFeed.jsm:184
 0:07.30 pid:4343 _middleware/</<()@resource://activity-stream/lib/Store.jsm:49
 0:07.30 pid:4343 Store/this[method]()@resource://activity-stream/lib/Store.jsm:28
 0:07.30 pid:4343 uninit()@resource://activity-stream/lib/Store.jsm:151
 0:07.30 pid:4343 uninit()@resource://activity-stream/lib/ActivityStream.jsm:290
 0:07.30 pid:4343 uninit()@resource://gre/modules/addons/XPIProvider.jsm -> file:///home/ato/src/gecko/obj-x86_64-pc-linux-gnu/dist/bin/browser/features/activity-stream@mozilla.org/bootstrap.js:73
 0:07.30 pid:4343 shutdown()@resource://gre/modules/addons/XPIProvider.jsm -> file:///home/ato/src/gecko/obj-x86_64-pc-linux-gnu/dist/bin/browser/features/activity-stream@mozilla.org/bootstrap.js:169
 0:07.30 pid:4343 callBootstrapMethod()@resource://gre/modules/addons/XPIProvider.jsm:4414
 0:07.30 pid:4343 observe()@resource://gre/modules/addons/XPIProvider.jsm:2273
 0:07.30 pid:4343 GeckoDriver.prototype.quit()@driver.js:2732