facebook messenger blank name list

RESOLVED DUPLICATE of bug 825264

Status

()

Firefox
SocialAPI: Providers
RESOLVED DUPLICATE of bug 825264
5 years ago
3 years ago

People

(Reporter: BugReporter, Unassigned)

Tracking

21 Branch
x86
Windows 7
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

Attachments

(2 attachments)

(Reporter)

Description

5 years ago
Created attachment 749705 [details]
Capture.PNG

User Agent: Mozilla/5.0 (Windows NT 6.1; rv:21.0) Gecko/20100101 Firefox/21.0
Build ID: 20130506154904

Steps to reproduce:

installed the messenger, reloaded the messenger


Actual results:

contact list in messenger gone after reloading, couldn't reproduce the bug


Expected results:

same as when we click on the messenger in facebook
(Reporter)

Updated

5 years ago
Severity: normal → major
Component: Untriaged → SocialAPI
Priority: -- → P1
(Reporter)

Comment 1

5 years ago
how to fix blank messenger :
1- log out of facebook (must use messenger)
2- relogin into facebook (must use messenger)

if i reload the messenger, the name list become blank again and the steps above have to be repeated so the contact list will appear
(Reporter)

Comment 2

5 years ago
forgot this problem, once i turned off the messenger and reopens it back, the name list are all gone too
I cannot reproduce this issue. Facebook has been known experience temporary outages in the sidebar recently. Can you confirm this still reproduces? If so can you see if it reproduces in a new Firefox profile?
Severity: major → normal
Component: SocialAPI → SocialAPI: Providers
Priority: P1 → --
(Reporter)

Comment 4

5 years ago
after i made a new profile, things got worse. the name list area is still blank. now when i clicked on facebook icon, it displays "Not logged in".
What happens when you click Not Logged In? It should take you to a page where you can log into the Facebook service. Once logged in the sidebar should eventually load with content.
(Reporter)

Comment 6

5 years ago
i am always "Logged In" on facebook. yes, i did click on Not Logged In and it brought me back to my fb homepage although nothing seems to change in the sidebar. it's still blank
Does this happen in any other Firefox versions? Can you try the latest Nightly?
My wife is on beta and has this exact problem.  I don't think I've seen the sidebar work on her computer for a couple of weeks now.
(In reply to Mark Hammond (:markh) from comment #8)
> My wife is on beta and has this exact problem.  I don't think I've seen the
> sidebar work on her computer for a couple of weeks now.

Thanks Mark. Can you try to do some local debugging? I've been trying to reproduce this all week and haven't succeeded.
(Reporter)

Comment 10

5 years ago
yes, i have tried 21,22, 23 and nightly24. all but the same
I can see facebook content if I "view source" the sidebar.  The "search" button at the bottom of the sidebar is visible, and interestingly, the "ticker" on the main facebook page vanishes as I reload the sidebar (implying that the main page is correctly detecting the sidebar is open).

To cut a long trial-and-error story short...

My wife's account doesn't display any of the "feed" in the ticker - just contacts with whom she can chat are displayed.  This is true on both the main facebook site, and was also true when the sidebar was working.  She has the problem.

My rarely-used personal account is the same - I can repro the problem with that account.

My test account displays both the contacts and feed (that account was explicitly whitelisted for this by Facebook back while this was being developed).  I *can't* repro the problem with that account.

So my guess is that this is the key to whether the problem can be reproduced or not.

Also, FTR, my wife's account shows an error as the sidebar reloads:

Timestamp: 18/05/2013 3:19:18 PM
Error: TypeError: this.data.fb_dtsg is undefined
Source File: https://www.facebook.com/desktop/fbdesktop2/socialfox/fbworker.js.php
Line: 81

But I can't see this in either of my 2 accounts I was using for testing - so that error doesn't *seem* related - but it might be.

I'm pretty confident this is a Facebook problem and not a problem with the Fx side of the world (which we probably all believe to be the case already...)
Status: UNCONFIRMED → NEW
Ever confirmed: true
Duplicate of this bug: 872216
I can reproduce this now but it seems to be Windows only. Unfortunately it seems like this might be a regression. I can reproduce in Firefox 21 but not in Firefox 19.0.2. Will work to see if I can find a regression window.
Keywords: regressionwindow-wanted
Hrm...this is frustrating. Does not reproduce for me in the last Firefox 21.0a1 Nightly build. Can someone else confirm?
> ftp://ftp.mozilla.org/pub/firefox/nightly/2013/02/2013-02-19-03-10-55-mozilla-central/firefox-21.0a1.en-US.win32.installer.exe
I've just reproduced in Linux, using a clean profile.
(In reply to Marco Castelluccio [:marco] from comment #15)
> I've just reproduced in Linux, using a clean profile.

Does this reproduce reliably? I can only seem to reproduce this haphazardly. If you can, please see if you can find a regression window. We're blocked on moving forward with this bug until a window can be identified.
I can now reproduce this on all accounts on both linux and windows.  For my main test account, I still see newsfeed items, but see a blank user list.

Chat seems totally broken - eg, even without the list being displayed, it should be possible to receive a message from another facebook user - but this doesn't work.

However, I still see no evidence that Fx has anything to do with this - I'm still somewhat confident this is totally on Facebook's side, even if the symptoms are somewhat intermittent...
I'm not convinced that this is solely a Facebook issue yet. Are you able to reproduce in a Firefox version prior to Firefox 21?

Comment 19

5 years ago
I'm using Firefox 21 on my laptop - it's working FINE (issue never happened)
While on my desktop (both laptop/Desktop Win8) and Aurora I'm having this issue.
I can't seem to reproduce this anymore in any Firefox version. I think we need to open a conversation with Facebook and work together to figure out what's happening here. Going back and forth about who can and cannot reproduce this will not get us closer to a resolution.
(In reply to Mark Hammond (:markh) from comment #11)
> My wife's account doesn't display any of the "feed" in the ticker - just
> contacts with whom she can chat are displayed.  This is true on both the
> main facebook site, and was also true when the sidebar was working.  She has
> the problem.

The feed not displaying can happen and is by design.  It happens if there is not some "significant" use of the feed in the website, but I'm not sure what the logic is that determines whether the feed is shown.  

As long as the contacts display, the sidebar is operating as it should.

> Also, FTR, my wife's account shows an error as the sidebar reloads:
> 
> Timestamp: 18/05/2013 3:19:18 PM
> Error: TypeError: this.data.fb_dtsg is undefined
> Source File:
> https://www.facebook.com/desktop/fbdesktop2/socialfox/fbworker.js.php
> Line: 81

This happens normally when everything is working.
(In reply to Mark Hammond (:markh) from comment #17)
> I can now reproduce this on all accounts on both linux and windows.  For my
> main test account, I still see newsfeed items, but see a blank user list.
> 
> Chat seems totally broken - eg, even without the list being displayed, it
> should be possible to receive a message from another facebook user - but
> this doesn't work.
> 
> However, I still see no evidence that Fx has anything to do with this - I'm
> still somewhat confident this is totally on Facebook's side, even if the
> symptoms are somewhat intermittent...

What is happening is that they are breaking something in the worker when different teams update some core libraries.  Once the worker is broken, the contacts, login, chat, etc. all fail.  The ticker does not rely on the worker, which is why it continues to show up.
(In reply to Shane Caraveo (:mixedpuppy) from comment #21)
> The feed not displaying can happen and is by design.  It happens if there is
> not some "significant" use of the feed in the website, but I'm not sure what
> the logic is that determines whether the feed is shown.  

I'm surprised you think I'm not aware of that - especially since I explicitly mention that fact and the whitelisting my account had :)

> As long as the contacts display, the sidebar is operating as it should.

Yes - that's why I was discussing the fact the contacts were not displaying.
(In reply to Mark Hammond (:markh) from comment #23)
> (In reply to Shane Caraveo (:mixedpuppy) from comment #21)
> > The feed not displaying can happen and is by design.  It happens if there is
> > not some "significant" use of the feed in the website, but I'm not sure what
> > the logic is that determines whether the feed is shown.  
> 
> I'm surprised you think I'm not aware of that - especially since I
> explicitly mention that fact and the whitelisting my account had :)
> 
> > As long as the contacts display, the sidebar is operating as it should.
> 
> Yes - that's why I was discussing the fact the contacts were not displaying.

I figured you did know, but (after rereading your comments several times) you were not explicit that the lack of the feed is not a bug, only that is what happens on your non-whitelisted accounts.  I was merely trying to add information for others who might read this.

It wasn't so much a reply to you directly though that is the mechanism we have for commenting in bugzilla.  Sorry if I offended.

Updated

5 years ago
Duplicate of this bug: 875813
As requested in bug 872216 comment #10 by Anthony, here are my settings. Note that these were taken from a point where I had just deactivated FB Messenger, which had shown the bug.

Before:
social.activeProviders;{"https://www.facebook.com":1}
social.cached.notificationIcons;{"provider":"https://motown-dev.mozillalabs.com","data":{"mentions":{"name":"mentions","iconURL":"data:image/png;base64,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%3D","counter":0,"contentPanel":"https://motown-dev.mozillalabs.com/social/mentions"}}}
social.directories;https://addons.mozilla.org
social.enabled;false
social.manifest.facebook;{"origin":"https://www.facebook.com","name":"Facebook Messenger","workerURL":"https://www.facebook.com/desktop/fbdesktop2/socialfox/fbworker.js.php","iconURL":"data:image/x-icon;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8%2F9hAAAAX0lEQVQ4jWP4%2F%2F8%2FAyUYTFhHzjgDxP9JxGeQDSBVMxgTbUBCxer%2Fr999%2BQ8DJBuArJksA9A10s8AXIBoA0B%2BR%2FY%2FjD%2BEwoBoA1yT5v3PbdmCE8MAshhID%2FUMoDgzUYIBj0Cgi7ar4coAAAAASUVORK5CYII%3D","sidebarURL":"https://www.facebook.com/desktop/fbdesktop2/?socialfox=true","icon32URL":"data:image/png;base64,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","icon64URL":"data:image/png;base64,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","description":"Keep up with friends wherever you go on the web.","author":"Facebook","homepageURL":"https://www.facebook.com/about/messenger-for-firefox","shareURL":"https://www.facebook.com/sharer/sharer.php?u=%{url}","updateDate":1369209329046,"installDate":0}
social.provider.current;https://www.facebook.com
social.remote-install.enabled;true
social.sidebar.open;true
social.sidebar.unload_timeout_ms;10000
social.toast-notifications.enabled;true
social.whitelist;https://mozsocial.cliqz.com,https://now.msn.com,https://mixi.jp

After turning FB messenger back on, this time the bug did not reproduce, I see a list of online contacts now. But if it helps, here are the changed settings:
social.activeProviders;{"https://www.facebook.com":1}
social.cached.ambientNotificationIcons;{"provider":"https://www.facebook.com","data":{"friends-jewel":{"name":"friends-jewel","iconURL":"https://fbstatic-a.akamaihd.net/rsrc.php/v2/yK/r/KctZPWvpeXB.png","counter":0,"contentPanel":"https://www.facebook.com/desktop/client/socialfox/contentpanel.php?socialfox=true&access_token=CAAD7ryIZCqu0BAJZANNars6ndsZAjMsM9PzBve0O0OiZAwDJmGvS1BrdQbEKzOMY1xDPldN99ftajYUCUDoOYxpw6h86NL4MUnhHe6NZB005LBOfICLCQ3mQGXCchoKpyqN8jH45kWZCZC31nfpBDKHZAAlQSCO7yGKXhSOkAtKJMwZDZD&jewelName=friends-jewel","label":"Alle Freundschaftsanfragen anzeigen","menuURL":"https://www.facebook.com/friends/edit/?sk=requests"},"messages-jewel":{"name":"messages-jewel","iconURL":"https://fbstatic-a.akamaihd.net/rsrc.php/v2/yj/r/2BR6iq9W_gT.png","counter":0,"contentPanel":"https://www.facebook.com/desktop/client/socialfox/contentpanel.php?socialfox=true&access_token=CAAD7ryIZCqu0BAJZANNars6ndsZAjMsM9PzBve0O0OiZAwDJmGvS1BrdQbEKzOMY1xDPldN99ftajYUCUDoOYxpw6h86NL4MUnhHe6NZB005LBOfICLCQ3mQGXCchoKpyqN8jH45kWZCZC31nfpBDKHZAAlQSCO7yGKXhSOkAtKJMwZDZD&jewelName=messages-jewel","label":"Alle Nachrichten anzeigen","menuURL":"https://www.facebook.com/messages/?ref=mb"},"notifications-jewel":{"name":"notifications-jewel","iconURL":"https://fbstatic-a.akamaihd.net/rsrc.php/v2/yN/r/Jm947_4nd4H.png","counter":0,"contentPanel":"https://www.facebook.com/desktop/client/socialfox/contentpanel.php?socialfox=true&access_token=CAAD7ryIZCqu0BAJZANNars6ndsZAjMsM9PzBve0O0OiZAwDJmGvS1BrdQbEKzOMY1xDPldN99ftajYUCUDoOYxpw6h86NL4MUnhHe6NZB005LBOfICLCQ3mQGXCchoKpyqN8jH45kWZCZC31nfpBDKHZAAlQSCO7yGKXhSOkAtKJMwZDZD&jewelName=notifications-jewel","label":"Alle Benachrichtigungen anzeigen","menuURL":"https://www.facebook.com/notifications"}}}
social.cached.notificationIcons;{"provider":"https://motown-dev.mozillalabs.com","data":{"mentions":{"name":"mentions","iconURL":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAABACAYAAACqaXHeAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAG65AABuuQF7Z5B6AAAACXZwQWcAAABAAAAAQADq8/hgAAAHTUlEQVR42u2bUYxUVxnHf/9z78zO7G6XRRaWBbqFZWkBDbE1Ra2mVJJqgwltTMVoSn1oDBpKREMiNfGpD9a20VqskSgP7UtTWo1FE02NiWlMGpsSV6wBYoVlSymULSx0d3bmztzz+TA7s9uUsnd3mFlG/Cc3N5l77jnn/z/n+853vntGNBBb7r4ZgzYn3QncC7YBMOBl0K+92UuCsf0v/r1hfVKjGvrKPbdgsEjwfWArZh+xqR2Rzkk8Y+Z/CLzz3G8HGtKvoBGNfPnum/FG1kkPA9vNrO0SxbKgW0GtPra/fGx1T+lfR0/XvW+u3g3ctWEVgXM4sRHYamYfKvrEs/vktDEIHF/YsKr5Bbius41CKQolbTKzzunKm1mnxKZCqRB2dLY2vwBChApaJfoTvyP1Bwpb1QAXVXcBwBAWADMZzlawhvinsP78DbDJe6J3QFji4rXgknNs287dmFmLAncT4uPm/RIgM2sJfClbHD31VR8Xe5O84ILUUKp9ybNy4TizX6rzcu4UxoDF/qikwt4nHrm8AN/4zvfoTWc5GY2vkXPbDTYD3ZilzWodjpnyqK09SSBFwBnBAfP+qWXp7OGhaJxf/uRHH+zVAzt2kW1vpViI1kvaY2brK6RrJz83kFS9S3rVzHakWtKvjo/m2LfncWCKDwhTIVE+6pV4rELezJBENpshcA3xSVcMsY/J5wtTB2898FiUj7aGqXCoKhLAAzt3cfbiafV0LtsNPGxmgZmxsGsBt3/6k/Td0Es6nZprTjNCFBU5dmKIl1/5G2eH363Mghj4wdsjJx9Z2LHY9j3xeHkGBAro7lzaBWyukO+c18HX7r2Hj95041xzmTVWrVzBsqU9PP3s84xcuFimKm3u7lz6KxlnYSIOkISD64E+KNv8urVrWN2fOHa5arG6v591a9dMNYU+B9dX/EMI4CQMzQdaKnbfs7ibIGhAnFRnBIGjZ3H3VIfYAppf8f5u4teKGJooRBg0l9O7HMIgqAowwTGc4Py+ULg517rZoco1WShsBsUx8CUamEOZhByk2ysz9YoimQClHP7gL2DkRLkzDYWH9h7crQ9CS8ccCWAe3juFXTgOarBvMF++fFyX6pPvBuUmr4bD1c3yZrAdnuGW9kqhup2eUwEELfOgdcGcmIAynXWbeckESLXiPvFNiKPGkq8gSEFL+xwKIAdti+aGfJ3R/LHu/wWoDYlXgWKxiPd+akx91cLMcM6RSk2fw0gkQKlU4vjx4+RyuaYRoK2tjb6+PoJpNnWJZ0AURRQKhbnmlhipVCpRLjOxAFMTjFc7ZpLETSxAs2eIaxJAEul0mlKp1DQzIJ1OJ+prIgGcc6xYsaLpVoHpHGBiASQlWlKaEdd8IHTNC5DIBMyMKIqaagWoOO7pfFYiAeI4ZnBwsCkjwTC8PMUZ7QWiKGoaAdLpdKKyiX1AMxCfDf5nI8Gk/ZwqwIcOsSQymUxTBUKZTOZyfa0+CKGacC1Wcq9mRlQsVksHQcDy5cubZvShPGiVSDAqFquHPQxMZa6TAnhvAMPCcsA8M2Po5FsUiyVSqfIkmc6bXq0oFksMnXyrKgBmOY+GmRhMB2Dm8dibSEcq6r1++CgHBw4Rx/X5ItMIxHHMwYFDvH746KQ5SEc89qaZByomYLCgLXN+JJd/QdJngPRYLsf+F3/PsRND9C2/gZYmOyJTiIocGzzBawOHGJuIXyRFmL2woDVz/t3R8bIelRe2fXc3QBfSXsy+VDkkZWaEYYiT5uTD8Kxg4M2q2/fKhfQbzLYBw3t/XD4zWDXsYk6k223Yx/aQc0oBdwEpSXjv8XNNahZwrnL+Q0VJf/TeHnIBw9Ho5Ei+b0y//uAO5rUvIh+NLXbS/QZbwFYKZa2WjVN5JoVlB5wEMkmlWs4DCLxh46D/CPZ7s2cy6bbTF0bf4emf7bm0ABVs27kbGc47uuW0GqwHI1lseQkyVsq350eOf9v74qppP3IKnEv9O9O54qcKM6PJRftAPRHobfN2xHnOmPDTHpWtB7ZsXoeZzXdBcMCMzyYRQOKvPo43Szq//8Chuvav/ou7HMiQnMwskeSShDMa4XUbkxCZTQDZoKDzms8INU6AmYxoA7cc9fcBXqhsznHZpg10CV9gACrfjVi+fueCpuKKN3Hnz9sx8wpc0A4sVMByFYJV6VMdO82z2lIxFnrMURZigry8UMmhkgNxtLhk9Elrid8gZtCjM3K8Zx7/0rcuXI0CdLBpH8SRsnJ2C/A5xG14bkR0AVkzUjMLhCgB42ack+MNjFcQf/axXmvtiMYG/7GQgUeHklVXTwE+/2QHqS6IL7IWxy6ML2J0GbgrZsuaMA5xDvEH83q0Jev+OT4a86ftF2uqumYfoDSULtIr8RSeO+qSM7HqH8kWSNwnWW8hH9/vQk7UWnVNq8Dtz12HAyTuAG5rRMJooo1PARvkYePvajs+W5MA2RHhPZjRb7PeK8xKhDTGyvE8ZM/UVtd/Abe99deYN8YwAAAALnpUWHRjcmVhdGUtZGF0ZQAAeNozMjA01DU00jUyDDE0sDIxsDI11TawsDIwAABA8gUJ6Yml2gAAAC56VFh0bW9kaWZ5LWRhdGUAAHjaMzIwNNA1MNc1NA8xMrQytLAyNtc2sLAyMAAAQb4FGLosfRUAAAAASUVORK5CYII%3D","counter":0,"contentPanel":"https://motown-dev.mozillalabs.com/social/mentions"}}}
social.directories;https://addons.mozilla.org
social.enabled;true
social.manifest.facebook;{"origin":"https://www.facebook.com","name":"Facebook Messenger","workerURL":"https://www.facebook.com/desktop/fbdesktop2/socialfox/fbworker.js.php","shareURL":"https://www.facebook.com/sharer/sharer.php?u=%{url}","iconURL":"data:image/x-icon;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8%2F9hAAAAX0lEQVQ4jWP4%2F%2F8%2FAyUYTFhHzjgDxP9JxGeQDSBVMxgTbUBCxer%2Fr999%2BQ8DJBuArJksA9A10s8AXIBoA0B%2BR%2FY%2FjD%2BEwoBoA1yT5v3PbdmCE8MAshhID%2FUMoDgzUYIBj0Cgi7ar4coAAAAASUVORK5CYII%3D","sidebarURL":"https://www.facebook.com/desktop/fbdesktop2/?socialfox=true","icon32URL":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAACXBIWXMAAAsTAAALEwEAmpwYAAADbklEQVRYCc1Xv08UQRj99tctexAuCEFjRE0kGBEtLDSGqIWNxkYKbTAxNlY2JhaGWltNtNFeKgsKKxITK43/gCYW+IsoRhA4D47bH7fn9+bcvdm5JR7sefolC3Ozu9978+bNN7PayUv3HN3umdY0Y6IWBtSJ0HSTarXqTOiuTep6Lj+tdxAcA8RAgSmwdd2aCDs0clldYALb/FvgYVhjmfliVA2XpjEgWo0Attn42Z6WH1RFor5ehwo9XQIUZMoVn4qlCoVMSo62EvD8Kh0b3U2Xz43R2PBO6mUCGDlAf65V6MadZzT/rUimoccc2kYA4BfPHqJb105RzjJigKhRq9kEJUBIjgYVuXeL7SAI6eD+Abp5dTwVHOmEHxT50d8WBYJqSOdPj5BjW8gZR8UNqFR2xagx/65XFYaMH+BGWwiYpi4UkBPPLxTp9v1Z+lHc4DWvCQXWmIy6EjITgKowVd5Jjv7N3Hd6y5esigoOwpkJIAmMpZpLJGdiaaC4F0UmAj6bD84GCEwmB/qxMmRilmnwb/mpjAocHh4UEoNAt5NLZB7oy9OJo0PxqkAtePdhiSqunyC1LQUwWMPQaOr6GRre258Ajn4cP7KHcEXhsxpXbj+lT19X2TMNGTLVAcjcalS8gDwsQ2UOMhH4k8FkcrEn5E5ub2sKohxLK2VR77Hl9RUcsrgeRIEiVOT6z+tDbIeLy+vk+kGTCbXxycet6xhl//3f6bJEkdHYhA+mLtDIvoH4ieev5+juoxdk5+pjhALYEdXIpEB5w+NlSKSzqVQ/+H7IO6BLtl3fngGMiqhGJgIwlM6qpyUGFjySdk8m0Zg0ubeD7X9OIDEFajltRQgUJaUKx69tdgaQa0FMADuahZPMFtcEwNPm2hA7ZI5sK4aoE2NvYI+o8hkCIe7CwTv68zS0q9Dk5vpbm/8FXxitSzmMFHpsGj0wyLUheTwD2Y9fVgh1Ae0EPUgD9241ZEnld+v5kgnVZ/8fE0brVh5BK+1oCqKKF72Dk7HwBsssB/pklU1dfChy3S659H5+uelgIb+8WRv1/uGTV9Sdb5wJFlfW6fPCalMhwhSU1j2xKwKbP838GcOwJja4TqO0bjdmXxYTy1EYjFdCWoCEYZhseH/GDL3yJPHnuW6YmT7P1SlIA4768Hke4vOcsX8BE346lLHhDUQAAAAASUVORK5CYII=","icon64URL":"data:image/png;base64,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","description":"Keep up with friends wherever you go on the web.","author":"Facebook","homepageURL":"https://www.facebook.com/about/messenger-for-firefox","updateDate":1369916131575,"installDate":1369916131575}
social.provider.current;https://www.facebook.com
social.remote-install.enabled;true
social.sidebar.open;true
social.sidebar.unload_timeout_ms;10000
social.toast-notifications.enabled;true
social.whitelist;https://mozsocial.cliqz.com,https://now.msn.com,https://mixi.jp
Facebook messenger is working for firefox-23 Aurora nightly build for the following operating systems.

Windows 8
Windows XP
Ubuntu Linux 32 bit

But I am seeing issues with Facebook messenger for firefox-23 Aurora nightly build and firefox-24 central build for the following operating systems.

Windows 7 64 bit
Windows 7 32 bit
Ubuntu Linux 64 bit

When I turn on Facebook messenger, I can not see icons and friends list in sidebar.
For the people who is able to reproduce the bug, can you try to see if it's still happens with hardware acceleration off? It seems far fetched but since there appears to be platform differences, it'd be good to try..

It's under Options -> Advanced -> General: "Use hardware accel when possible". It requires a new Firefox window to take effect (restarting would be good to know for sure)
In addition to Felipe's idea, I'd also recommend broad testing of each platform.  ie, just because it fails on one Windows 7 box doesn't mean it will fail on all Windows 7 boxes (and certainly it's working for me on Windows 7).  Similarly, the fact it fails on one Ubuntu box doesn't imply all will fail.

Which is really just another way of saying that hunting for a regression range might be pointless - it may be something way more subtle than can be identified in such a range, and may still end up being an issue with Facebook rather than with Fx (eg, some obscure timing-related bug in their websockets code could easily account for this)
I'm not willing to call this effort pointless as of yet. Even if a regression window doesn't lead to a fix I still think it's worth making an attempt.

I'm not yet convinced this isn't at least partially Firefox's fault as Samvedana can reproduce this quite reliably and is seeing activation failures with Facebook, MSN, and Cliqz. 

Fact of the matter is this bug poses an ever looming risk to QA's ability to do it's job; if we can't activate providers we can't qualify them. Broad testing to date has not yielded any good leads, apart from checking what Felipe suggests. I see assisting Samvedana with finding a regression window for her situation as our best option right now.
I certainly didn't mean to imply that this bug isn't important or that your efforts are pointless.  I was just raising the possibility that the bug may not be able to pointed at a single bad checkin.

eg, if you can determine that *some* Windows7 boxes work while some don't - even when using the exact same version, I'd suspect that, as Felipe suggested, we'd be looking for a preference, an addon, a driver, a characteristic of the FB account, etc.
Based on what I've seen of Samvedana's testing so far I think we can rule out preferences and add-ons. All of her testing has been on clean-slate VMs with first-time activations in new Firefox installs with new profiles and no add-ons installed.
I have regressed this to between Firefox 20.0a1 Nightly 2012-11-20 and 2012-11-21 on windows7 32 bit platform.

Facebook messenger worked for 11/20/2012 nightly build 
It didn't work for 11/21/2012 nightly build 

pushlog URL:-
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=bc69705c162d&tochange=4f19e7fd8bea
Thanks Samvedana.

Unfortunately this is from a while ago. I'm not sure if we still have inbound or tinderbox builds to regress this further, and the pushlog includes a lot of changes. Mark, is there anything here that stands out? Anything we can do to regress this further?

Samvedana, can you see if this regression window holds true for other platforms where you experience this bug?
Samvedana, also, can you test to see if turning hardware acceleration on or off affects this bug for you?
(In reply to Anthony Hughes, Mozilla QA (:ashughes) from comment #34)

Nothing in that regression range leaps out - other than the fact it is from November last year, which is close enough to when it initially launched and so long ago that I'm very skeptical a regression which breaks the contacts list could have been introduced back then.
(In reply to Anthony Hughes, Mozilla QA (:ashughes) from comment #34)
> Thanks Samvedana.
> 
> Unfortunately this is from a while ago. I'm not sure if we still have
> inbound or tinderbox builds to regress this further, and the pushlog
> includes a lot of changes. Mark, is there anything here that stands out?
> Anything we can do to regress this further?
> 
> Samvedana, can you see if this regression window holds true for other
> platforms where you experience this bug?

I an getting same result on Ubuntu 64 bit platform, but on windows 7 64 bit I am getting different result.

On Windows7 64 bit, Facebook messenger works on both nightly builds.
(In reply to Mark Hammond (:markh) from comment #36)
> (In reply to Anthony Hughes, Mozilla QA (:ashughes) from comment #34)
> 
> Nothing in that regression range leaps out - other than the fact it is from
> November last year, which is close enough to when it initially launched and
> so long ago that I'm very skeptical a regression which breaks the contacts
> list could have been introduced back then.

If I recall correctly, we shipped Facebook Messenger in Firefox 17 whereas this regression window points to Firefox 20. Can you please clarify what you mean by this statement?
(In reply to Anthony Hughes, Mozilla QA (:ashughes) from comment #35)
> Samvedana, also, can you test to see if turning hardware acceleration on or
> off affects this bug for you?

It didn't affect Windows 64 and 32 bit platform. Hardware acceleration on and off cases produced same result as before (for Firefox 20.0a1 Nightly 2012-11-20 and 2012-11-21)
It was relatively soon after we shipped the feature, so I'd expect interest and usage to be relatively high among nightly users (eg, staff, etc) - so I'd think a major regression introduced in nightly back then would have more chance of being noticed than if the same regression was introduced today.

Also, it was so long ago that if the problem really could be attributed to it failing consistently due to a revision in that range, I'd be really surprised it took so long to be identified as such.

It wouldn't be the first time I've been proven wrong, but I'm just trying to be helpful :)  Best I can tell, there is only 1 social-related revision in that range, and that has to do with chat windows.  So if it *does* turn out to be in that range, I'd expect to find it is a lower-level platform-ish problem that is somewhat intermittent in the way it manifests itself in this context...
Actually, I can identify 3 social related changesets:

http://hg.mozilla.org/mozilla-central/rev/1aab9de3c554
http://hg.mozilla.org/mozilla-central/rev/5c2a58449a3d
http://hg.mozilla.org/mozilla-central/rev/fe7d66a7e1e2

2 are around chat windows, the other is a fix for the UI shown in the provider dropdown.  Nothing touches the sidebar or any of the APIs used by the sidebar.
(In reply to Mark Hammond (:markh) from comment #40)
> Also, it was so long ago that if the problem really could be attributed to
> it failing consistently due to a revision in that range, I'd be really
> surprised it took so long to be identified as such.

Unless of course it's a regression in our code that was hiding until it was exposed by a change on Facebook's side. I've strongly suspected that this is a bug on both of our ends for a while but I have no evidence as of yet to back up that suspicion.

> So if it *does* turn out to be in that range, I'd expect to find it is a lower-level 
> platform-ish problem that is somewhat intermittent in the way it manifests itself in this
> context...

Do you have any suspicions of what types of platform changes might impact this functionality? Maybe we can bring this to the attention of some platform engineers to assist?
(In reply to Anthony Hughes, Mozilla QA (:ashughes) from comment #42)
> Do you have any suspicions of what types of platform changes might impact
> this functionality? Maybe we can bring this to the attention of some
> platform engineers to assist?

Not really - a bug around websockets maybe?  The ideal thing would be for Facebook engineers to be looking at this problem with us.  And maybe a pony ;)
Duplicate of this bug: 866205
Created attachment 784025 [details]
FX 23 Facebook messenger.PNG

User Agent : Mozilla/5.0 (Windows NT 6.1; rv:23.0) Gecko/20100101 Firefox/23.0 
Build ID: 20130725195523

It didn't work if I follow thr steps given in comment 18 of bug 866205.
Tested on Windows 7-32 bit using latest Firefox release, I can not see friend's list.
I've noticed this for the first time on Mac,too.

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:26.0) Gecko/20100101 Firefox/26.0
BuildID:20130815030203

- I cannot see friend's list when chat is turned on 
- "Not logged in" button is shown even if I'm logged in. ( if I click on "not logged in" button, home page logged is opened)

I've tested this before with old versions and I don't remember to have ever had this problem, but now if I use older version (Firefox 21/20) I see the problem... hmmm :/

I've tested with hardware acceleration off, same error,too.
(In reply to Tiziana Sellitto [:tiziana] from comment #46)
> I've noticed this for the first time on Mac,too.
> 
> Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:26.0) Gecko/20100101
> Firefox/26.0
> BuildID:20130815030203
> 
> - I cannot see friend's list when chat is turned on 

Facebook is having a problem on their end, they are currently looking into it.
Duplicate of this bug: 906697
I can reproduce this issue with Firefox 26 beta 6 (build ID: 20131118212339) on Win 7 64-bit. I can't see the contact list.
Recurring issue, duping to the earliest bug I can find in our system.
Status: NEW → RESOLVED
Last Resolved: 4 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 825264
Keywords: regressionwindow-wanted
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