Firefox is on in background after closing

Recently having a problem that I have seen with others also but have seen no real fix. When I x out of ff and try to reopen I get message that it is running. have tried to delete from "processes" but will not delete or stop the process. I have to totally restart to use ff. Is there a permanent fix or is this a ff bug that has not been addressed? Your assistance please. I really don't want to go back to explorer.

Hi Matt,
Did all that and nothing.... I even removed the parent lock but when i reboot it appears again. Do you think if I uninstall and reinstall that will work? I am suprised that with all the comments on this problem that ff hasn't issued a fix.

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Firefox apears in firewall even after closing all processes and continues to download file

firefox continues to download files even after closing all the processes, this behavior was noticed by looking at the my firewall activity log. I am using get them all download manger (firefox extension) to download files in firefox. When first time firefox is started after starting computer it doesnt have any problem, but once I open the download manager and start downloading files it never stops.
I am using : down them all version 2.05 beta on FF 3.6.12
1. start computer
2. open firefox
3. check firewall status (bitdefender firewall running at report level) - no activity noticed
3. add url to download file in download them all manager
4. start download - bitdefinder shows firefox accessing internet
5. pause download
6. check firewall status - bitdefinder doesn't show firefox accessing internet in process listing but it does show network activity is going on at its peak.
7. close all firefox windows and remove firefox.exe from task manager
8. check bit defiender firewall status it continues to run at peak eating up all the network bandwidth
9. remove rule of firefox from firewall so as it may prompt when firefox try to connect to internet (bit definder firewall is running in report mode for approval for each connection)
10. as soon as rule removed, bit definder pops up window sayaing firefox is trying to access remote server (same from where the download was earlier started)
11. Allow the firefox to access it and again it will start downloading in background and bitdefinder shows up internet activity at its peak.

naah, looks like its problem of firefox, i removed the plugin and tried downloading using the normal download winodw of firefox but same problem, this time it starts picking up item from the download window and continues to download

Firefox exe continues to run after closing all windows, and consumes massive amounts of cpu

after closing all firefox windows and trying to reopen i get the "firefox is still running but unresponsive" message, and have to go into task manager, processes and end the firefox exe, which is consuming between 96 and 100 cpu.

Norton IPS is apparently a known issue being mentioned in the KB articles:
*[[firefox will not start]]
* [[firefox crashes when you open it]]
* I also found an earlier post on the Norton site http://community.norton.com/t5/Norton-Internet-Security-Norton/Norton-IPS-1-0-Addon-for-FireFox/m-p/25425#M8494 but I am not sure this is still considered a problem.
What exactly is this IPS extension. I am currently using XPs with Norton's NIS (version 18.6 - it is a paid for subscription). I do have Intrusion Prevention active in NIS but I see no specific extension or program IPS. Is this some optional additional software?
I did find an explanation but from 2009
* http://community.norton.com/t5/Norton-Protection-Blog/Intrusion-Prevention-System-IPS-Your-first-line-of-defense/ba-p/124400
I am NOT using the Norton Toolbar etc. is it these components that are causing the problem i.e safe search etc.
I am not having problems with firefox hanging or continuing, despite using NIS.
There is a bug on this https://bugzilla.mozilla.org/show_bug.cgi?id=548945 but that does not seem to have got very far in confirming or resolving the issue. I imagine Norton have a very large userbase and it seems unlikely that the basic NIS is itself incompatible with Firefox.

Firefox stays active in memory after closing program

After closing Firefox and restarting the progam after a while, a popup message appears saying Firefox is allready active (message in dutch) and Firefox does not (re)start. It is not an active window however, since I closed it down...
When I press alt-ctr-del, Firefox can be found as "active"in the processes-tab.
To re-start Firefox I now manually must click on "end process" and now Firefox starts without problem.
This happens on each occasion after closing the program.
Anyone know how to solve it? Help appreciated!

Please read this article:
http://support.mozilla.com/pt-BR/kb/Firefox+hangs#Hang_at_exit

Firefox doesn't close but hangs in the background after closing it using up excessive memory up to 2gb.

When Firefox 8 loses connection to certain websites and I have to close it from the lower taskbar, it hangs in the background on task manager using excessive memory even after it is closed. I have seen it use up to 2gb of memory while closed but still hanging in the background in task manager. My computer slows down and when I try to open another browser window the little loading icon goes around and around so I check to see what is making it so slow. It is always firefox 8 hanging in the background using memory. I have 8gb of ddr2 memory on this 64 bit computer it shouldn't be slowing down because of a browser bug but it does.

From what I have been reading from other posts on this forum, the
issue may be caused by the clear history settings.
Press the '''<Alt>''' or '''<F10>''' key to bring up the tool bar.
Followed by;
Windows; '''Tools > Options'''
Linux; '''Edit > Preferences'''
Mac; ''application name'' '''> Preferences'''
Then '''Privacy'''.
The button next to '''History''', select '''Use Custom Settings'''.
At the bottom of the page, turn on '''Clear History When Firefox Closes.'''
At the far right, press the '''Settings''' button. Turn on ONLY '''Cache''' and
'''Form And Search History''' leaving the others off.
This is not a cure but will make it easier if Firefox locks up.
'''https://support.mozilla.org/questions/997866?esab=a&s=&r=1&as=s''' {web link}

After installing zone Alarm extreme 10, firefox.exe 32 stays running in the background after closing, making it not possible to open it again.

After installing the latest Zone Alarm Extreme v10, on windows 7 x64, when I close firefox, the window closes but firefox.exe 32 remains running in the background, which makes that when I want to open firefox again, after about a minute I get the error that an instance of firefox is still running. I go to task manager and end task of firefox.exe 32 and then open firefox again.
This is now happening regularly.

This seemed to come out of the blue, very much as described by anima42. I also am a Ubuntu 10.04 user. I have pondered on the first reply above, and though I don't, and didn't, use Tabberwocky, I was using Tab Mix Plus. Having removed this, the problem seems to have gone away. Another possible clue as to what went wrong: I use a constant Firefox profile located in my home directory. I dabbled with Ubuntu 11.04 a week or so ago, which runs (I think) a more updated Firefox. This Firefox was operating on my default profile, as you would. It may have broken something so it now doesn't play nicely with the 10.04 setup. Just surmising.

Firefox.exe (32 bit) continues to run in the background after closing, Im running Firefox (64 bit).

After browsing the web and downloading items from websites, with Firefox's built in download manager, then closing Firefox I'll have to open my task manager and manually stop the 32 bit .exe. Im running Firefox (64 bit) on a Win7 (64 bit) system.

see https://support.mozilla.com/questions/836193

I get the "firefox has stopped working" message after closing browser

Hello.
My problem is that when I close the FireFox browser I get the "FireFox has stopped working" message. It's pretty annoying. I've read some other posts here that described a similar problem and have tried some of the suggestions in them including:
A clean install, a browser reset, running in safe mode, unchecking hardware acceleration, disabling extentions and plugins one at a time, uninstalling my antivirus (avast), rolling back to version 23.01 and checking run in compatibility mode that someone claimed helped them. None of this was effective.
It seems like after a computer restart the browser will be ok for 2-4 closings and then it will start with the message on every closing. Also, after I uninstalled avast it was good for 6 closings. Rolling back also gave me about 6 message free closings. But then the messages start and doesn't stop.
Is there anything else I can try? Thanks in advance for any suggestions.

One thing is for sure, and that is if the only page i visit is the Google homepage (not logged in) or this site (mozilla forum), the problem does not occur, ever. I can't make it happen.
If i visit yahoo.com (not logged in) (or ighome.com, logged in), as examples, it happens every time.

Process of Adobe Reader XI, is running in the Background, after closing.

Hi,
when I close the Adobe Reader XI, the Process is still running in the Background of my System. The Process needs a lot of CPU an after some moment my System is slowing down rapidly.
Windows 8 (64-bit)
Adobe Reader 11.
What's to do?
Greetings

Same exact same situation happened to me with Windows 8 64 bit, Adobe XI .
the CPOU is slowing down and is heated. the fans s running all the time. the only solution was for me to end the processes from the taks bars (one process per adobe file open !!!)
somethign is definitely wrong; but don't know if it is Windows 8 or Adobe; I thing it is Adobe issue.

Firefox hang in task list after closing successfully

OS: windows 7 32 and 64-bit
Symptom: firefox can be open can close "properly" without error message. But when you look in the task list, firefox is still there. You still can open firefox without problem. It will add another process if you close it. So more and more processes in the task list if you repeating open and close after surfing some web sites. You cannot kill the task, even you are administrator. The only way to get rid of it is to re-start the PC.
It happens in 3 of my PCs.

Most often hanging at exit is caused by Extensions, maybe plugins. Try Firefox Safe Mode; don't check any items, just click "Continue to Safe Mode". http://support.mozilla.com/en-US/kb/Safe+Mode
See more:
*http://kb.mozillazine.org/Firefox_hangs#Hang_at_exit
*http://kb.mozillazine.org/Firefox.exe_always_open
*http://support.mozilla.com/en-US/kb/Troubleshooting+plugins
*http://support.mozilla.com/en-US/kb/Basic+Troubleshooting

Both Firefox & Thunderbird won't reopen after closing. require reboot

When I close Firefox or Thunderbird, they do not reopen later. Dialog box says they are still running, but process won't close in task manager. System requires reboot to get back in

Maybe your security (Anti-virus) software is checking files while Firefox is starting and takes so much time that Firefox can't access them and decides to skip loading those locked files. If that happens with sqlite database files like places.sqlite then bookmarks won't work properly. A second start works because the AV software had already checked the file. So you need to check the rules for Firefox in your security software.
A possible cause is security software (firewall) that blocks or restricts Firefox possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox.
See [[Server not found]] and [[Firewalls]] and http://kb.mozillazine.org/Firewalls

Firefox 33.1.1 crashes after closing program

Everytime this new release closes, it hangs and crashes. Happens on all my computers, thus something in Firefox 33.1.1. There are dozens and dozens of crashes since this new release. My last crash was in 2013 and prior to that, 2012.
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Firefox 33.1.1 Crash Report [@ mozalloc_abort(char const* const) | NS_DebugBreak | nsDebugImpl::Abort(char const*, int) ]
Search Mozilla Support for Help
ID: e0a1edcd-5e04-4135-8d18-197b82141125
Signature: mozalloc_abort(char const* const) | NS_DebugBreak | nsDebugImpl::Abort(char const*, int)
Details
Metadata
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Extensions
Signature mozalloc_abort(char const* const) | NS_DebugBreak | nsDebugImpl::Abort(char const*, int) More Reports Search
UUID e0a1edcd-5e04-4135-8d18-197b82141125
Date Processed 2014-11-25 18:50:45.967352
Uptime 855
Last Crash 4758 seconds before submission
Install Age 917502 since version was first installed.
Install Time 2014-11-15 03:58:53
Product Firefox
Version 33.1.1
Build ID 20141113143407
Release Channel release
OS Windows NT
OS Version 6.1.7601 Service Pack 1
Build Architecture x86
Build Architecture Info GenuineIntel family 6 model 42 stepping 7 | 4
Crash Reason EXCEPTION_BREAKPOINT
Crash Address 0x74111425
User Comments
App Notes
AdapterVendorID: 0x8086, AdapterDeviceID: 0x0102, AdapterSubsysID: 04931025, AdapterDriverVersion: 9.17.10.3517
D2D? D2D+ DWrite? DWrite+ D3D11 Layers? D3D11 Layers+ xpcom_runtime_abort([6548] ###!!! ABORT: file resource://gre/modules/HealthReport.jsm, line 4360)
Processor Notes sp-processor09_phx1_mozilla_com.27409:2012; MozillaProcessorAlgorithm2015; skunk_classifier: reject - not a plugin hang
EMCheckCompatibility
True
Winsock LSP
MSAFD Tcpip [TCP/IP] : 2 : 1 : %SystemRoot%\system32\mswsock.dll
MSAFD Tcpip [UDP/IP] : 2 : 2 :
MSAFD Tcpip [RAW/IP] : 2 : 3 : %SystemRoot%\system32\mswsock.dll
MSAFD Tcpip [TCP/IPv6] : 2 : 1 :
MSAFD Tcpip [UDP/IPv6] : 2 : 2 : %SystemRoot%\system32\mswsock.dll
MSAFD Tcpip [RAW/IPv6] : 2 : 3 :
RSVP TCPv6 Service Provider : 2 : 1 : %SystemRoot%\system32\mswsock.dll
RSVP TCP Service Provider : 2 : 1 :
RSVP UDPv6 Service Provider : 2 : 2 : %SystemRoot%\system32\mswsock.dll
RSVP UDP Service Provider : 2 : 2 :
Adapter Vendor ID
0x8086
Adapter Device ID
0x0102
Total Virtual Memory
4294836224
Available Virtual Memory
3522301952
System Memory Use Percentage
44
Available Page File
2394779648
Available Physical Memory
2335838208
Bugzilla - Report this bug in Firefox Core Plugins Toolkit
Related Bugs
1087674RESOLVED FIXED Firefox won't close with Avast 2015 10.0.2206 when HTTPS scanning is enabled
1079312RESOLVED FIXED AsyncShutdownTimeout "AddonManager: Waiting for providers to shut down.", "OpenH264Provider", crash in mozalloc_abort(char const* const) | NS_DebugBreak | nsDebugImpl::Abort(char const*, int)
1071702RESOLVED DUPLICATE AsyncShutdown crash with "AddonManager: shutting down providers"
1057312RESOLVED FIXED AsyncShutdownTimeout "AddonManager: shutting down providers"
1037826RESOLVED DUPLICATE Shutdown crash in mozalloc_abort(char const* const) | NS_DebugBreak | nsDebugImpl::Abort(char const*, int)
991668VERIFIED FIXED Exporting bookmarks.html may cause AsyncShutdown to abort crash due to "too much recursion" error caused by old promises in Task.jsm
987323REOPENED --- AsyncShutdown crash: "SessionFile: Finish writing the latest sessionstore.js"
944873RESOLVED FIXED Crash in mozalloc_abort(char const* const) | NS_DebugBreak | nsDebugImpl::Abort(char const*, int) with abort message: ###!!! ABORT: file resource://gre/modules/AsyncShutdown.jsm, line 390)
Crashing Thread
Frame Module Signature Source
0 mozalloc.dll mozalloc_abort(char const* const) memory/mozalloc/mozalloc_abort.cpp
1 xul.dll NS_DebugBreak xpcom/base/nsDebugImpl.cpp
2 xul.dll nsDebugImpl::Abort(char const*, int) xpcom/base/nsDebugImpl.cpp
3 xul.dll NS_InvokeByIndex xpcom/reflect/xptcall/md/win32/xptcinvoke.cpp
4 xul.dll XPC_WN_CallMethod(JSContext*, unsigned int, JS::Value*) js/xpconnect/src/XPCWrappedNativeJSOps.cpp
5 mozjs.dll js::Invoke(JSContext*, JS::CallArgs, js::MaybeConstruct) js/src/vm/Interpreter.cpp
6 mozjs.dll Interpret js/src/vm/Interpreter.cpp
7 mozjs.dll js::RunScript(JSContext*, js::RunState&) js/src/vm/Interpreter.cpp
8 mozjs.dll js::Invoke(JSContext*, JS::CallArgs, js::MaybeConstruct) js/src/vm/Interpreter.cpp
9 mozjs.dll js::CallOrConstructBoundFunction(JSContext*, unsigned int, JS::Value*) js/src/jsfun.cpp
10 mozjs.dll js::Invoke(JSContext*, JS::CallArgs, js::MaybeConstruct) js/src/vm/Interpreter.cpp
11 mozjs.dll js_fun_call(JSContext*, unsigned int, JS::Value*) js/src/jsfun.cpp
12 mozjs.dll js::Invoke(JSContext*, JS::CallArgs, js::MaybeConstruct) js/src/vm/Interpreter.cpp
13 mozjs.dll js::Invoke(JSContext*, JS::Value const&, JS::Value const&, unsigned int, JS::Value const*, JS::MutableHandle<JS::Value>) js/src/vm/Interpreter.cpp
14 mozjs.dll js::DirectProxyHandler::call(JSContext*, JS::Handle<JSObject*>, JS::CallArgs const&) js/src/jsproxy.cpp
15 mozjs.dll js::CrossCompartmentWrapper::call(JSContext*, JS::Handle<JSObject*>, JS::CallArgs const&) js/src/jswrapper.cpp
16 mozjs.dll js::Proxy::call(JSContext*, JS::Handle<JSObject*>, JS::CallArgs const&) js/src/jsproxy.cpp
17 mozjs.dll js::proxy_Call(JSContext*, unsigned int, JS::Value*) js/src/jsproxy.cpp
18 mozjs.dll js::Invoke(JSContext*, JS::CallArgs, js::MaybeConstruct) js/src/vm/Interpreter.cpp
19 mozjs.dll js::Invoke(JSContext*, JS::Value const&, JS::Value const&, unsigned int, JS::Value const*, JS::MutableHandle<JS::Value>) js/src/vm/Interpreter.cpp
20 mozjs.dll js::jit::DoCallFallback js/src/jit/BaselineIC.cpp
21 @0x15f058cc
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Turning off "Enable Telemetry" and leaving Firefox Health and Crash Reporter enabled works just fine. This is solved the problem on two computers. On another computer, had to disable all 3 for it to work properly.

Since my last upgrade, Firefox will frequently not restart after closing a session unless I reboot my computer. How can I fix this?

This problem just started within the last two weeks, but it happens several times per day (not every time I quit a Firefox session, but often enough to be really annoying).

hello, this is currently a bug when you have set firefox to clear your history during shutdown of firefox in the privacy options. this is going to be fixed in the next version of the browser - for now you can run the firefox 30 beta version which should no longer be affected by this issue: https://www.mozilla.org/firefox/beta/

How to save firefox 4.02b app tabs after closing browser

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I have customized my Firefox toolbar. After closing the browser and then reopening it, the toolbar has returned to the way it was before I customized it. How do I get my customization of the toolbar to become permanent?

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see http://kb.mozillazine.org/Corrupt_localstore.rdf
Take a picture of your toolbars so you can easily reconstruct them from the default after solving the the problem.
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Firefox is on in background after closing

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