new tab button does not appear and cannot be added in Firefox 55.

UNCONFIRMED
Unassigned

Status

()

Firefox
Toolbars and Customization
P3
normal
UNCONFIRMED
10 months ago
9 months ago

People

(Reporter: howard3915, Unassigned, NeedInfo)

Tracking

55 Branch
Points:
---

Firefox Tracking Flags

(firefox57 fix-optional)

Details

(Reporter)

Description

10 months ago
User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:55.0) Gecko/20100101 Firefox/55.0
Build ID: 20170824053622

Steps to reproduce:

Attempted to customize toolbars.  When  opened customization, new tab button appears on tab bar (+ sign).  I can move it off of tab bar to customization menu and/or back to tab bar.  However when closing customization, the new tab button always disappears.  I have Firefox 55 32 bit version on a 64 bit Windows 10 desktop.

Updated

10 months ago
Component: Untriaged → Toolbars and Customization

Comment 1

10 months ago
Do you have any add-ons installed? Can you reproduce with a clean profile? On the profile where this is broken, if you do the following:

- open about:config
- search for "devtools.chrome.enabled"
- switch it to true by double-clicking that line
- hit ctrl-shift-j to open the browser console
- evaluate: CustomizableUI.getWidgetIdsInArea("TabsToolbar")

what is the output?

This feels like bug 1370791.
Flags: needinfo?(howard3915)

Comment 2

9 months ago
Without more details this shouldn't be a p1. I'll check on bug 1370791 though.
status-firefox57: --- → fix-optional
Priority: -- → P3
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