911164 - Current window loses focus temporarily when hovering the pointer over the QuickTime volume button

Status: RESOLVED WONTFIX

(Core Graveyard :: Plug-ins, defect, P4)

Description

[Bogdan Maris, Desktop Test Engineering]

Reproducible on the latest Beta (BuildID: 20130829135643):
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20100101 Firefox/24.0
Reproducible on the latest Aurora (BuildID: 20130830004004):
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:25.0) Gecko/20100101 Firefox/25.0
Reproducible on the latest Nightly (BuildID: 20130829030201): 
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:26.0) Gecko/20100101 Firefox/26.0

Steps to reproduce:
1. Start Firefox.
2. Drag a .mp3 file in one tab.
3. Hover the pointer over the volume button.

Expected results: Focus stays on Firefox.

Actual results: Firefox loses focus when hovered over the volume button.

Notes:
1. Same issue with a H.264 encoded video.

Comment 1

[Paul Adenot (:padenot)]

This is a page using QuickTime that you see, not Firefox <audio> or <video>.

Comment 2

[Steven Michaud [:smichaud] (Retired)]

Please attach an .mp3 file with which you can reproduce this problem.

> 1. Same issue with a H.264 encoded video.

Please attach another example for this testcase.

And what does this mean?  Does this testcase load a plugin (QuickTime or some other plugin)?

Finally, do these problems happen on all platforms (including Windows and Linux), or only on the Mac?

Comment 3

[Bogdan Maris, Desktop Test Engineering]

Attachment: .mp3 audio file sample

(In reply to Steven Michaud from comment #2)
> Please attach an .mp3 file with which you can reproduce this problem.

.mp3 file attached, though it`s reproducible with any .mp3 file.
 
> > 1. Same issue with a H.264 encoded video.
> 
> Please attach another example for this testcase.

I had a large file on my PC (+200MB) but I found one on the web:
http://www.808.dk/pics/video/gizmo.mp4

> And what does this mean?  Does this testcase load a plugin (QuickTime or
> some other plugin)?

Yes it loads a QuickTime plugin. 

> Finally, do these problems happen on all platforms (including Windows and
> Linux), or only on the Mac?

This happens only on Mac (10.7.3 and 10.8).

Comment 4

[Bogdan Maris, Desktop Test Engineering]

Attachment: Screencast showing the issue

Also attached a screenshot showing the issue.

Comment 5

[Georg Fritzsche [:gfritzsche]]

Thanks for the details. I can't be sure, but this really looks like an issue with how the Quicktime plugin does the volume popup.

Comment 6

[Steven Michaud [:smichaud] (Retired)]

I can reproduce this (in FF 23.0.1 on OS X 10.8.4).

You don't need to drag a file into a tab -- just visiting a URL like http://www.808.dk/pics/video/gizmo.mp4 will also allow you to reproduce the problem.

I see the same problem in Opera 16, but not in Safari.  So yes, this looks very much like a QuickTime bug.  I assume that Safari contains some kind of workaround (or that QuickTime behaves differently in Safari).

For some reason, QuickTime in Chrome uses a different UI for the volume button, so the problem can't happen there.

Comment 7

[Steven Michaud [:smichaud] (Retired)]

Another couple of things:

It's not the app (Firefox or Opera) that loses focus -- it's the current window (the one in which the plugin is displayed).

And even that window only loses focus temporarily (only as long as the mouse hovers over the volume button).

Comment 8

[Virtual_ManPL [:Virtual] 🇵🇱 - (please needinfo? me - so I will see your comment/reply/question/etc.)]

I'm marking this bug as WONTFIX per bug #1269807.

For more information see - https://blog.mozilla.org/futurereleases/2015/10/08/npapi-plugins-in-firefox/