966657 - Active window losing focus to other Fx window

Status: RESOLVED WORKSFORME

(Firefox :: Untriaged, defect)

Description

[Peter Kroon]

User Agent: Mozilla/5.0 (Windows NT 6.1; rv:26.0) Gecko/20100101 Firefox/26.0 (Beta/Release)
Build ID: 20131205075310

Steps to reproduce:

Started Firefox stable and opened a new window using Ctrl-N
I was already logged in on Facebook.
Opened https://www.facebook.com/BigbandBlastNL.


Actual results:

When the page was done loading the previous Firefox window got focus.
The current window is behind the previous window


Expected results:

When done loading the page the window should remain focus.


I was able to reproduce this on Nightly as well.

Comment 1

[Peter Kroon]

Happens as well when opening GitHub: https://github.com/marijnh/codemirror/issues

Comment 2

[Benedikt Pfeifer]

I'm frequently seeing that the active Fx window is losing focus and another Fx is taking it. I don't have steps to reproduce that (yet) though.

Comment 3

[Benedikt Pfeifer]

As this isn't limited (comment #1, #2) to the initially reported 'Facebook windows' (comment #0) I'm changing the summary accordingly.

Comment 4

[Benedikt Pfeifer]

Judging by the variety of ways in which bug 768802 can manifest, this might be another one? There's no mention of flash in it though.

I remember at least that I've seen this (i.e. what I wrote in comment #2) when enabling the flash plugin from the door hanger panel.

Could you check if the problem goes away when disabling the Flash plugin, Peter?

Comment 5

[Peter Kroon]

The problem remains when flash is turned off.

Comment 6

[Paul Pasca[Away. Please needinfo? Paul Oiegas [:pauloiegasSV]]]

Hi reporter,

I haven't managed to reproduce this issue on the latest release(43.0.4) nor latest Nightly(46.0a1). If I open any new window and after the pages loads, it doesn't lose focus

User Agent: Mozilla/5.0 (Windows NT 6.1; rv:43.0) Gecko/20100101 Firefox/43.0
Build ID: 20160105164030

User Agent: Mozilla/5.0 (Windows NT 6.1; rv:46.0) Gecko/20100101 Firefox/46.0
Build ID: 20160107030235

Can you please try to reproduce this on the latest release(43.0.4) and latest Nightly(46.0a1) and provide the results? When doing this, please try to reproduce with a new clean Firefox profile, maybe even in safe mode, as some of this issues may be caused by third party installed add-ons or custom settings(https://support.mozilla.org/en-US/kb/troubleshoot-and-diagnose-firefox-problems).

Thanks,
Paul.

Comment 7

[Paul Pasca[Away. Please needinfo? Paul Oiegas [:pauloiegasSV]]]

Since the reporter didn't provide the requested information, I will mark this issue as RESOLVED INCOMPLETE. If you still encounter this problem, please feel free to reopen this bug, or file a new one.

Comment 8

[Peter Kroon]

Just tried Windows 10 with 64 bit FF Nightly and I'm unable to reproduce.