1370423 - Title bar appears and disappears in Firefox Developer Edition

Status: RESOLVED DUPLICATE of bug 1357892

(Firefox :: Theme, defect)

Description

[Dean Edridge [:deanedridge]]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:54.0) Gecko/20100101 Firefox/54.0
Build ID: 20170529025115

Steps to reproduce:

Using Firefox Developer Edition (54.0b12) MacOS. I went to the hamburger stack on the right and clicked on customize then enabled the title bar. After a while I noticed that it had disappeared. When I go to this page: https://addons.mozilla.org/en-US/firefox/themes/?sort=popular&page=1 and hover over the images of the themes the title shows up again. It also shows up when I click on the hamburger stack and go into the customize mode. I decided to install one of the themes and the title bar is now working again.


Actual results:

The title bar disappeared but came back when hovering over the theme images on the addon site. It also appears each time I go into the customize settings area.


Expected results:

The title bar should have stayed in place.

Comment 1

[Dean Edridge [:deanedridge]]

If it helps, I am thinking there's a problem with the theme used for Firefox Developer Edition.

Comment 2

[:Gijs (he/him)]

When you say the title bar "disappeared", was it completely black? (a screenshot might help)

If not, can you check in a clean Firefox profile and/or with add-ons disabled? (Help > Restart with add-ons disabled)

Comment 3

[Dean Edridge [:deanedridge]]

Attachment: with-Compact-Dark-theme-title-appears-only-while-customizing.png

With the Compact Dark theme (that ships with and is enabled by default in Firefox Developer Edition) the title appears only when in customizing mode.

Comment 4

[Dean Edridge [:deanedridge]]

Attachment: with-Compact-Dark-theme-title-disappears-1.png

With Compact Dark theme (default theme for Developer Edition) the title disappears.

Comment 5

[Dean Edridge [:deanedridge]]

Attachment: with-Compact-Dark-theme-title-disappears-2.png

With Compact Dark theme (default theme for Developer Edition) the title disappears.

Comment 6

[Dean Edridge [:deanedridge]]

Attachment: with-Default-theme-title-appears.png

With the Default theme the title appears. Note: This is called the Default theme but it is not the default theme for Firefox Developer Edition.

Comment 7

[Dean Edridge [:deanedridge]]

Attachment: with-Default-theme-title-shows-up.png

With Default theme title appears. Note: this is called the default theme but is not the default for the Firefox Developer Edition.

Comment 8

[Dean Edridge [:deanedridge]]

These images I have attached are from Developer Edition running 54.0b14 (64-bit) MacOS which is a fresh install with a fresh new profile.

Comment 9

[Dean Edridge [:deanedridge]]

Sorry, I forgot to restart in safe-mode with addons disabled when I took those images, but I did disable those things now and the title is just the same, not showing up.

Comment 10

[:Gijs (he/him)]

OK, great, so then we are aware of this bug - we're just not entirely sure how to fix it at this point. :-(