1417204 - Graphical artifact top right corner of screen opens random pages when double-clicked

Status: NEW

(Toolkit :: Alerts Service, defect, P2)

Description

[Eddy Young]

Attachment: 20171114-000016.png

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0
Build ID: 20171113100232

Steps to reproduce:

1. Reboot computer
2. Start Firefox
3. Maximise window.
4. Double-click on shadow artifact.

Windows 10 1709 64-bit

Name 	Firefox
Version 	59.0a1
Build ID 	20171113100232

Multiprocess Windows 	1/1 (Enabled by default)
Web Content Processes 	5/7
Stylo 	content = true (enabled by default), chrome = false (disabled by default)



Actual results:

3a. Shadow artifact appears at top-right corner of screen.

4a. Two tabs open with previously viewed YouTube videos.


Expected results:

Not sure where that artifact comes from.

Comment 1

[Eddy Young]

Attachment: 20171114-000017.png

Comment 2

[Eddy Young]

Attachment: 20171114-000019.png

Comment 3

[Eddy Young]

It appears that the two "random" videos are the latest two listed in my YouTube notifications -- see additional screenshots.

Comment 4

[Eddy Young]

Is the notification window being positioned in the wrong place at Firefox startup?

Comment 5

[Milan Sreckovic [:milan] (needinfo for best results)]

Eddy, do you have webrender enabled in about:config?

Comment 6

[Eddy Young]

(In reply to Milan Sreckovic [:milan] from comment #5)
> Eddy, do you have webrender enabled in about:config?

Hello,

`gfx.webrender.enabled = false` in about:config.

Another piece of information: It appears that this behaviour happens only right after starting Windows 10 and launching Nightly as the very first application in maximised mode.

Also, I confirm it is definitely the YouTube video notification. No other notification causes this problem (e.g. reddit.com notification displays correctly in bottom right corner of the screen).

Comment 7

[Darkspirit]

Would it help to disable layout.display-list.retain (bug 1416055) and to restart Nightly?

Comment 8

[Milan Sreckovic [:milan] (needinfo for best results)]

:dolske, I'm guessing this is a front end type of issue, would you mind routing it to the right place or bounce it back if it isn't front end?

Comment 9

[Justin Dolske [:Dolske]]

I think we need some more info here to be able to reproduce/diagnose this.

Presumably you need to have something set up in... Windows? YouTube? Firefox? to trigger whatever this is. Simply launching Firefox maximized in Windows 10 doesn't do anything like this for me. If clicking gives you YouTube videos, are these notifications coming from YouTube channel subscriptions? Are these videos for channels you've subscribed to?

I'm also not clear on the context/relation between the 3 attachments in comment 1-3...

Attachment 8928279 [details] seems to be the bug at issue.

Attachment 8928280 [details] is... what? Is this some UI within a YouTube page? It seems quite different from a web notification (try with the "Notify Me" button on https://developer.mozilla.org/en-US/docs/Web/API/notification -- that gives me vaguely similar but distinctly different UI, and it's on the bottom-right).

Attachment 8928281 [details] is presumably just showing the tabs that were opened?

Assuming these are indeed from web notifications, over to that component.

Comment 10

[Eddy Young]

Attachment: 2017-12-05 21-19-53.flv

Comment 11

[Eddy Young]

(In reply to Justin Dolske [:Dolske] from comment #9)
> I think we need some more info here to be able to reproduce/diagnose this.

Apologies. It is so unusual that I did not have high expectation of this bug to be looked at. 

FWIW, it is still happening to date in Nightly even after re-installing Windows 10. in fact, as I type this, the bug is manifesting itself (see .flv attachment). I cannot ascertain that it happens only on first launch of Firefox after restarting Windows 10, but that is how I can reproduce the bug.

> Presumably you need to have something set up in... Windows? YouTube?
> Firefox? to trigger whatever this is. Simply launching Firefox maximized in
> Windows 10 doesn't do anything like this for me. If clicking gives you
> YouTube videos, are these notifications coming from YouTube channel
> subscriptions? Are these videos for channels you've subscribed to?

Yes, I have YouTube notifications turned on, and the videos are for channels that I am subscribed to.

Screenshot 20171114-000016.png (attachment 8928279 [details]) shows the shadow artifact.

Screenshot 20171114-000017.png (attachment 8928280 [details]) shows the YouTube channel notifications that relate to the tabs that open when the shadow artifact is double-clicked.

Screenshot 20171114-000019.png (attachment 8928281 [details]) shows the tabs that open when I double-click on the shadow artifact.

> I'm also not clear on the context/relation between the 3 attachments in
> comment 1-3...
> 
> Attachment 8928279 [details] seems to be the bug at issue.
> 
> Attachment 8928280 [details] is... what? Is this some UI within a YouTube
> page? It seems quite different from a web notification (try with the "Notify
> Me" button on https://developer.mozilla.org/en-US/docs/Web/API/notification
> -- that gives me vaguely similar but distinctly different UI, and it's on
> the bottom-right).

I also get the normal web notification layout most of the time, but occasionally it happens as in this bug. It took me a while before I correlated this to the YouTube channel notification. Before I thought it was Firefox tabs being drawn in the  wrong location and just restarted Firefox.

> Attachment 8928281 [details] is presumably just showing the tabs that were
> opened?
> 
> Assuming these are indeed from web notifications, over to that component.

Comment 12

[Selim Şumlu]

I can reproduce this with hacked.com notifications on latest Nightly. (In my case it's not a shadow but a thin yellow line. Probably something to do with my Windows theme.)

The problem arises if the website has sent a notification when Nightly was closed. Clicking on the "line" takes me to appropriate hacked.com page, which is usually the latest article.