1468720 - Freeze on mac osx account switch

Status: RESOLVED DUPLICATE of bug 1422855

(Core :: Widget: Cocoa, defect)

Description

[chris]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:61.0) Gecko/20100101 Firefox/61.0
Build ID: 20180611134439

Steps to reproduce:

Use firefox in account of user A, switch to account of User B, then switch to account of user A. Firefox is unusable for several minutes


Actual results:

 Firefox is unusable for several minutes


Expected results:

 Firefox is responsive

Comment 1

[Damira Akh]

Hi Cris,
Thank you for your contribution to our community.
I was able to reproduce this bug on latest Nightly.
After switching back and forth between 2 Gmail accounts Firefox was not responding for several minutes.

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:62.0) Gecko/20100101 Firefox/62.0
Build ID: 20180619102337

Comment 2

[chris]

Hi Danita,

That’s awesome but I meant between two macOS user accounts (as in create two admins on the machine) and then switch between them. Was it a typo or was it two gmail accounts you tried?

Comment 3

[chris]

Hi Damira,

That’s awesome but I meant between two macOS user accounts (as in create two admins on the machine) and then switch between them. Was it a typo or was it two gmail accounts you t
ried?

Comment 4

[Damira Akh]

Hi Cris,

I tried to reproduce this couple times but each time I was not able to reproduce it.

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:62.0) Gecko/20100101 Firefox/62.0
Build ID: 20180622100109

I would suggest you update your Firefox or install latest Nightly and try it with a clean profile. 
Thank you.

Comment 5

[Mark Banner (:standard8)]

I've seen something that is similar, or may be the same as this a couple of times recently, though I can't reproduce it enough to figure out what's happening.

Approximate steps to repeat:

1) Have Firefox running in account "a" and use it as normal for a while (I'm using nightly generally).
2) Switch to the log-in screen and log in as account "b".
3) Do some stuff in user account "b" (e.g. I'm using Firefox Release & Thunderbird for various things).
4) Switch back to account "a"

-> Firefox's UI is frozen - clicking on the UI doesn't change anything.

However if I focus another application & then back to Firefox it updates the UI, but it is a snapshot, and it is frozen again.

I haven't tried waiting several minutes. Restarting does fix it though.

I'm running Firefox on an external monitor. Mid 2015 MacBook Pro running 10.13.5.

Comment 6

[Justin Dolske [:Dolske]]

Perhaps our Mac hackers have a thought?

Comment 7

[Stephen A Pohl [:spohl]]

This is bug 1422855. It would be great to check with mozregression if this is a regression. Let's take the discussion to bug 1422855.