1377932 - windows control buttons missing

Status: NEW

(Core :: Widget: Win32, defect, P3)

Description

[ajsc1310]

User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:56.0) Gecko/20100101 Firefox/56.0
Build ID: 20170703030203

Steps to reproduce:

i closed the laptop lid without shutting down windows with a youtube page open.  then when i opened the lapto lid the firefox froze.  I had to close it through the taskbar right click close window.  again on opening the firefox program the windows control buttons on the right side ie. minimise, maximise and close buttons are missing. only when i minimise the window by double clicking the title bar the buttons appear


Actual results:

window control buttons disappear


Expected results:

window control buttons should not disappear

Comment 1

[ajsc1310]

after updating firefox the controls have reappeared even when maximised.

Windows 8.1 Pro 64 bit and firefox nightly 56.01a

Comment 2

[ajsc1310]

Attachment: Doc1 - Copy.docx

notice that the windows control buttons on the right i.e. the minimise, maximise and close buttons are not visible

Comment 3

[ajsc1310]

Attachment: Doc1 - Copy 2 views i.e. maximise and unmaximised.docx

sorry. but now i have subimitte print screen of 2 states of the firefox windows i.e one is maximised and the other is unmaximised.  notice the state of the winodows control buttons

Comment 4

[Sylvestre Ledru [:Sylvestre]]

Moving to p3 because no activity for at least 1 year(s).
See https://github.com/mozilla/bug-handling/blob/master/policy/triage-bugzilla.md#how-do-you-triage for more information