Steps to reproduce: 1. Remove SearchBar from Toolbar and restart 2. Attempt to open Web Developer menu from Hamburger menu Attempt to open Customize from Hamburger menu Attempt to open Browser Console with Ctrl+Shigt+J Actual Results: step2: The content of them is empty. Browser console does not open. Expected Results: Web Developer menu should open properly Customize tab should open properly Browser console should open properly Regression Window: https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=6b0f55d8a2d24606dff719d52a3e6598ce92664e&tochange=5c870a786e945197a770a308aeeececdff8bac18 Regressed by: Bug 1364896
Error in Browser console(start with -jsconsole): TypeError: Argument 1 of Document.getAnonymousElementByAttribute is not an object.[Learn More] browser.js:8234:19
Argh... Will fix.
Only happens on Windows 10, fwiw.
Duplicate Ticket: https://bugzilla.mozilla.org/show_bug.cgi?id=1376455
I've backed out bug 1364896 and will respin nightlies shortly. https://hg.mozilla.org/mozilla-central/rev/8f80d594c08d5c7a112e5d4b9eb44ffca717eb7b
6 months ago
Tested on Windows 10 x64 with FF Nightly 57.0a1(2017-08-09) using the steps from the description and I can't reproduce this issue. I will mark as verified fixed.