Closed
Bug 246531
Opened 20 years ago
Closed 8 years ago
Windows occasionally disappear from or appear twice in Windows XP's taskbar
Categories
(Core :: Widget: Win32, defect)
Tracking
()
RESOLVED
WONTFIX
People
(Reporter: absoluteflatness, Unassigned, Mentored)
References
Details
(Keywords: helpwanted, Whiteboard: [good first bug][lang=c++])
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; MathPlayer 2.0)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040608 Firefox/0.8.0+
Sometimes, when I have several browser windows open, but none are minimized,
all are just on top of each other and maximized so I can only see the top
window, the windows on the bottom can get "lost" from the taskbar. And no,
this is not the XP feature of grouping the buttons, just some of the windows
are missing.
This usually happens after I go to do something else than browsing. I will
return to the screen, and many times I don't notice the bug until after I
minimize the top window, and another comes into focus. Once I can see it on
the screen, I notice the sliding animation of a button being added to the
taskbar, and realize that I have less buttons than windows.
Reproducible: Sometimes
Steps to Reproduce:
1.Open several Firefox windows, and maximize them.
2.Do something else on your computer for a while
3.Check taskbar.
Actual Results:
All but one taskbar button is missing.
Expected Results:
All buttons should be there.
Comment 1•20 years ago
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I've been seeing this a lot over the last day or two on Win XP SP2. I've been
using recent nightlies. I have no clue how to reproduce it, it always takes me
by surprise. (Strange that my problem seems more recent than yours.)
Comment 2•20 years ago
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I've also seen this. Taskbar icons for windows just disappear, and sometimes
reappear. The window seems completely gone. It seems to happen after switching
through different windows but I really can't reproduce this at will. It has only
happened for me with multiple windows (and most likely multiple tabs, but that
probably isn't the issue). Next time it happens I will try looking into it further.
This is a hard one to diagnose as it can't be easily reproduced. Further testing
is really needed.
i also have this problem many times a day. i only ever have one browser open, i
just use tabs. if i switch to another app the taskbar entry will be gone, until
a time when the actual window should be apearing (ex. minimizing the rest of
your windows) and then the taskbar entry reappears at the end.
Comment 4•20 years ago
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I can confirm this as well. It seems to happen frequently with Firefox 1.0 on
WinXP SP1, but I don't know how to reproduce this. I've noticed that even when
it doesn't show up on the taskbar, it is shown in the apps that you see when you
press Alt+Tab. After you alt+tab to it, it gets added to the taskbar again.
Comment 5•20 years ago
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I can confirm this as well. Just now I had an instance of Windows Explorer,
Thunderbird 1.0, MS Word 2000, and Firefox 1.0. I did some things in Windows
Explorer (I had not minimized Firefox either) then realized the Firefox Taskbar
icon was gone. I Minimized the other windows I had open and put focus on Firefox
(which was there, though without its Taskbar icon) and its Taskbar icon
reappeared. I remember having this problem with Mozilla 1.7 and earlier too.
Comment 7•20 years ago
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I have also experienced this issue, when I move focus to another window and
after using it for a period of time, the taskbar icon for both the Firefox and
Thunderbird applications disappears until focus is returned to it. I haven't
investigated this that much so couldn't give you any detailed accounts but it
definately is an issue.
Comment 8•20 years ago
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Also experienced this with WinXP SP2. Alt-tabbing to select the missing taskbar
button will make it reappear. My opinion is that this is only a minor
nusciance, as the window is still there, but it should be fixed eventually
(perhaps in the 1.1 release). Seems fairly random to me.
Comment 9•20 years ago
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*** Bug 276606 has been marked as a duplicate of this bug. ***
Comment 10•20 years ago
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I've seen this happen to Dreamweaver, notepad and MS Word as well. It's a Window
bug.
Comment 11•20 years ago
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I have only experienced this with Mozilla products. A temporary fix for this is
just to alt+tab the window into focus. I think it happened to me once when that
window was actually in focus, but I might just be crazy.
Comment 12•20 years ago
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(In reply to comment #11)
> I think it happened to me once when that window was actually in focus, but I
> might just be crazy.
It just happened to me this way again, with thunderbird.
Comment 13•20 years ago
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Was just using Adobe Acrobat reader plug-in, and it happened every time with
that, after I clicked on a pdf, it loaded within Mozilla, and lost the taskbar
button. I'm using Adobe Reader's plug-in version 6.0.2, and it is VERY
reproducable at this link:
http://www.mmdl.org/spring2005/Schedules.html
I scroll down and click on one of the schedule pdf files, and it loads the pdf
file, and then loses the taskbar button. This is the first time I've heard of
it being reproducable, so please feel free to email me if you have any
questions!! I'm using Firefox v1.0 on WindowsXP.
Thanks!
Matt Leavitt
actorma@yahoo.com
Comment 14•20 years ago
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(In reply to comment #13)
> Was just using Adobe Acrobat reader plug-in, and it happened every time with
> that, after I clicked on a pdf, it loaded within Mozilla, and lost the taskbar
> button. I'm using Adobe Reader's plug-in version 6.0.2, and it is VERY
> reproducable at this link:
> http://www.mmdl.org/spring2005/Schedules.html
I haven't been able to reproduce it that way. I also use Firefox 1.0 under
WinXP, but with an Acrobat 6.0.3. However, I can also confirm the bug.
Comment 15•20 years ago
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(In reply to comment #14)
> (In reply to comment #13)
I'm using Adobe Reader's plug-in version 6.0.2, and it is VERY
> > reproducable at this link:
> > http://www.mmdl.org/spring2005/Schedules.html
>
> I haven't been able to reproduce it that way. I also use Firefox 1.0 under
> WinXP, but with an Acrobat 6.0.3. However, I can also confirm the bug.
Maybe only my slightly older version of Acrobat (6.0.2 vs. 6.0.3) does it.
Maybe it's the OS - I have WinXP SP2. Not sure. Do know mine is reproducable.
Hmm...
Comment 16•20 years ago
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I was able to reproduce it pretty consistently today using Firefox 1.0.2 and
Acrobat Reader 6.0.0. I had one window open, and clicked on a link (which I
cannot, unfortunately, provide here), and the PDF popped up in a second window.
When I closed the PDF window, the task bar icon disappeared for both windows,
leaving NO visible task bar icons.
Comment 17•19 years ago
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*** Bug 265348 has been marked as a duplicate of this bug. ***
Comment 18•19 years ago
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I have had this problem too, in Fx 1.0.4 and earlier. I'm running WinXP SP2.
Although I also cannot reproduce at will, it seems to occur more when I have an
excessive number of windows open in the taskbar (I'm not sure this problem
occurs if you use the 'Group similar taskbar buttons' under Taskbar Properties).
Comment 19•19 years ago
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*** Bug 295386 has been marked as a duplicate of this bug. ***
Comment 20•19 years ago
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*** Bug 297267 has been marked as a duplicate of this bug. ***
Comment 21•19 years ago
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This bug isn't unique to Firefox. It happens in SeaMonkey/Suite as well.
Prog.
Comment 22•19 years ago
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Couldn't find a seperate bug, but this same problem also occurs with Thunderbird.
Reporter | ||
Comment 23•19 years ago
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As far as I can tell, I see this bug with both Firefox and Thunderbird, and I
see reports for the Application Suite, too, but only under Windows XP.
I know I have never seen it on Win98 or Linux.
Component: OS Integration → Widget: Win32
Product: Firefox → Core
Summary: Firefox windows occasionally disappear from taskbar → Windows occasionally disappear from WinXP taskbar
Version: unspecified → 1.0 Branch
Comment 24•19 years ago
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*** Bug 306891 has been marked as a duplicate of this bug. ***
Reporter | ||
Updated•19 years ago
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Assignee: bugs → win32
QA Contact: os.integration → ian
Version: 1.0 Branch → 1.8 Branch
Comment 25•19 years ago
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*** Bug 310577 has been marked as a duplicate of this bug. ***
Comment 26•19 years ago
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The demo on this site seems to be able to fairly reliably make the window
disappear from the taskbar: www.kiko.com
I'm using firefox 1.0.7 on windows xp sp1.
Steps to reproduce:
1) Close all firefox windows.
2) Open new firefox window
3) Open second tab in firefox
4) Go to www.kiko.com then click on 'Try a demo...'
5) Whilst the 'kiko loading...' message is up the background will go white and
firefox will freeze (maybe that is another bug in firefox?); at that point try
clicking on the other tab in firefox (maybe several times) and firefox will
disappear from the taskbar.
Comment 27•19 years ago
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The kiko problem also happens in firefox beta 2, but in beta 2 you get a message
box saying that the script in this webpage may be busy do you wish to continue;
and if you click continue the taskbar button for firefox reappears.
Comment 28•19 years ago
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*** Bug 312633 has been marked as a duplicate of this bug. ***
Comment 29•19 years ago
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It seems (to the uneducated, such as me) that the window is actually being destroyed and a new one created in its place.
The window freezes and a second taskbar button appears. The two buttons can be independently selected, but the new window doesn't come to the front as the application is still in a state of general unresponsiveness. Then one of the taskbar buttons disappears; the remaining buttons don't slide smoothly as usual, so it's not possible to tell which one disappeared, but I assume it's the original one; the remaining window simultaneously unfreezes.
This happens far more frequently (positively often) on a slow, memory-starved computer.
It seems (i.e. all of the following is subjective) to be triggered most often by switching between tabs or messages, but quick scrolling or lots of clicking (especially on Flash content) also sets it off.
Summary: Windows occasionally disappear from WinXP taskbar → Windows occasionally disappear from or appear twice in Windows XP's taskbar
Comment 30•19 years ago
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*** Bug 321348 has been marked as a duplicate of this bug. ***
Comment 31•19 years ago
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I can add a reproducable situation with Thunderbird Version 1.5 (20051201). I have tested this on two PCs both with Win XP Sp2 with all updates. One PC is quite new and fast (3.6GHz), the other is quite old and slow (1.5GHz).
1. Open Thunderbird and configure that messages are saved automatically every 1 minute while composing
2. Compose a new message
3. Open as many other windows programs so that the two Thunderbird icons are grouped to 1 icon
4. Return to the compose window
5. Add some large attachements (>20MB), so that Thunderbird has something to do while autosaving the new message
6. Add an email adress to the To field
7. Wait for autosave of the message
When the message is autosaved the compose window disappears and both Thunderbird icons disappear from the task bar. They are still accessible with Alt-Tab.
Comment 32•18 years ago
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*** Bug 362853 has been marked as a duplicate of this bug. ***
Comment 33•17 years ago
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This happened today with a minimized Firefox window with multiple tabs.
Alt-Tab switching brought back the task bar icon and the window.
Firefox version:
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.3) Gecko/20070309 Firefox/2.0.0.3
Comment 36•17 years ago
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Still happening in Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6
Comment 38•16 years ago
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I just noticed this behavior starting yesterday, I have XP Pro fully updated running Firefox 2.0.0.14. No apparent pattern, just that one of the Firefox buttons disappears from the taskbar if I have multiple Firefox windows open. Minimizing all running applications on the taskbar will bring back the missing button sometimes. I have "group similar taskbar buttons" turned off so it's not related to that.
Comment 39•16 years ago
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I may know of a site where this bug might be more reproducible. I started a site recently at http://ucoz.com. They use a lot of popups, especially in their "visual editor" and the "file manager". These popups vanish a lot.
Note: I do happen to have two monitors. I was putting a lot of those popups into my second monitor, which is to the /left/ of my primary. That might be related too. However, I think I have seen this bug back in XP Pro SP1 and Firefox 1.x. These days, I run XP Pro SP3 and FF 3.0.4.
Comment 41•15 years ago
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This is happening on Windows XP x64, single monitor. I've seen this reproduced on various different video cards (ATI and nVidia) and video drivers as well.
Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.9.0.10) Gecko/2009042316 Firefox/3.0.10
Updated•15 years ago
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Assignee: win32 → nobody
QA Contact: ian → win32
Comment 43•15 years ago
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I've got the 'group similar taskbar buttons' selected and when my firefox disappears from the taskbar it is actually listed in my Windows Explorer 'similar taskbar' group.
If I use File > New Window to open a bunch of new firefox instances so that they get grouped, they get grouped under a Firefox group - but the original window doesn't 'move' from the Windows Explorer group to join them.
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 (.NET CLR 3.5.30729)
Comment 45•12 years ago
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Still happening to me on XP Pro SP3 with "Mozilla/5.0 (Windows NT 5.1; rv:12.0) Gecko/20100101 Firefox/12.0".
Comment 46•11 years ago
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Firefox latest version 24.0 and this is STILL happening with windows XP sp3
Will this ever get fixed?
Comment 47•11 years ago
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Windows XP Pro Ver 2002 SP3, machine 1.2GHz 1G Ram, Firefox 25.0.
ONLY the Firefox taskbar button ever disappears (I don't recall this ever happening until I upgraded to ver 25).
No recognized pattern of causation, but I'll be keeping a closer eye on it now.
Comment 48•10 years ago
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Same issue here. Sometimes the Firefox tab in the Taskbar just disappears.
The app is still open and operating fine. I am using Firefox 28.0 with
Windows XP PRO SP3 and all available updates for it. Not really sure when
this started, but it is very annoying. Please try to get this fixed.
Updated•10 years ago
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Mentor: jmathies, tabraldes, netzen
Whiteboard: [good first bug][lang=c++]
Comment 49•10 years ago
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I would like to work on this bug. Could you please guide on this as this is my first bug and i am new to opensource.
Comment 50•10 years ago
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Hi Naveen,
We have some taskbar code here:
http://dxr.mozilla.org/mozilla-central/source/widget/windows/WinTaskbar.cpp
But it only uses IID_ITaskbarList4 which isn to available in Windows XP
There is a ITaskbarList which is available on XP though and it has an AddTab function for adding an item to the taskbar. It would be possible to make WinTaskbar work with ITaskbarList.
Here's code that uses AddTab:
http://dxr.mozilla.org/mozilla-central/source/widget/windows/TaskbarWindowPreview.cpp#276
But that code is only used when the taskbar preview is enabled.
I'm not sure if implementing ITaskbarList and using AddTab always would help here or not. Thoughts Jim?
It seems like the issue is that the window appears but that the taskbar buttond oes not.
Flags: needinfo?(jmathies)
Comment 51•10 years ago
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(In reply to Brian R. Bondy [:bbondy] from comment #50)
> I'm not sure if implementing ITaskbarList and using AddTab always would help
> here or not. Thoughts Jim?
> It seems like the issue is that the window appears but that the taskbar
> buttond oes not.
I'm not sure if this will help, I think we're dealing with a weird bug in XP here. I've tried reproducing using the steps in comment 1 but haven't had any luck.
Flags: needinfo?(jmathies)
Comment 52•8 years ago
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is this still open? I can take this one.
Comment 53•8 years ago
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No longer actively supporting XP.
Status: NEW → RESOLVED
Closed: 8 years ago
Resolution: --- → WONTFIX
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Description
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