Happens to me on today's Nightly macOS Version 57.0a1 (2017-08-07) (64-bit) ReferenceError: addMessageListener is not defined [Learn More] activity-stream.bundle.js:736:3 initStore resource://activity-stream/data/content/activity-stream.bundle.js:736:3 <anonymous> resource://activity-stream/data/content/activity-stream.bundle.js:2724:15 __webpack_require__ resource://activity-stream/data/content/activity-stream.bundle.js:20:12 <anonymous> resource://activity-stream/data/content/activity-stream.bundle.js:66:18 <anonymous> resource://activity-stream/data/content/activity-stream.bundle.js:1:11
STR: 1. Cmd+T Expect result: 1. New tab content w/ onboarding overlay and button. Actual result: 1. Blank page with only onboarding overlay and button. 2. Open DevTools console shows the error in comment 0.
Sounds like bug 1387852. Is this consistently on every restart? Do you have any special sessionstore or startup prefs? Or maybe addons?
(In reply to Ed Lee :Mardak from comment #2) > Sounds like bug 1387852. Is this consistently on every restart? Do you have > any special sessionstore or startup prefs? Or maybe addons? I couldn't figure out how to reproduce this reliability. Let's dup given it's the same JS error.