Overall Summary
mochitest-browser: 7/8
  TEST-UNEXPECTED-FAIL | browser/components/places/tests/browser/browser_remove_bookmark_tags_toolbar_sidebar.js | A promise chain failed to handle a rejection: this._paneInfo is null - stack: showBookmarkDialog@resource:///modules/PlacesUIUtils.jsm:608:5
showBookmarkPropertiesForSelection@chrome://browser/content/places/controller.js:669:5
PC_doCommand@chrome://browser/content/places/controller.js:269:7
goDoPlacesCommand@chrome://browser/content/places/controller.js:1785:5
oncommand@chrome://browser/content/browser.xul:1:1
Rejection date: Wed Jan 17 2018 10:41:39 GMT+0200 (EET) - false == true - JS frame :: resource://testing-common/PromiseTestUtils.jsm :: assertNoUncaughtRejections :: line 253
Stack trace:
    resource://testing-common/PromiseTestUtils.jsm:assertNoUncaughtRejections:253
    chrome://mochikit/content/browser-test.js:Tester_execTest/<:1087
    Tester_execTest@chrome://mochikit/content/browser-test.js:1056:9
    Tester.prototype.nextTest</<@chrome://mochikit/content/browser-test.js:956:9
    SimpleTest.waitForFocus/waitForFocusInner/focusedOrLoaded/<@chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:795:59