No pop up on closing FireFox

Since I updated to FF 5.0 and now FF 6.0 yesterday, I still do not receive the pop up notice/warming that "you are about to close several tabs, do you want to?" I've had this setting for a couple years now, I think. Probably since it was offered.
I looked at this article on FF help:
http://support.mozilla.com/en-US/kb/Firefox%20does%20not%20ask%20to%20save%20tabs%20and%20windows%20on%20exit
I do not want to restore any session. I just want the pop up notice that asks "Are you sure you want to close all these tabs?"
Windows XP, SP3
Settings in FF: Tools | Options | Tabs
(These are all checked)
Open new windows in a new tab instead
Warn me when closing multiple tabs
Warn me when opening multiple tabs might slow down FF
Always show the tab bar
I did find an article and did the following (the first one was set to True already, but the second one was set to False and thus changed it)
Type about:config in the address bar and press enter.
Click on I'll be careful, I promise
Enter browser.warnOnQuit in the filter field at top
Double click (toggle) on it to change the boolean value to true.
Now enter browser.showQuitWarning in the filter field
Double click on it to change it to true
Now restart Firefox
Still no pop up when I shut down with multiple tabs open.

I'm not sure why this warning is no longer appearing, but you can turn it back on like this:
# Open the [[Options window]]
# Click on the "Tabs" section
# Click the checkbox next to "Warn me when closing multiple tabs"

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Stop pop up ad that appears desktop after closing firefox

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Create a new profile as a test to check if your current profile is causing the problems.
See "Basic Troubleshooting: Make a new profile":
*https://support.mozilla.org/kb/Basic+Troubleshooting#w_8-make-a-new-profile
There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins" in case there are still problems.
If the new profile works then you can transfer some files from the old profile to that new profile, but be careful not to copy corrupted files.
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*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox
Do a malware check with some malware scanning programs on the Windows computer. 
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Make sure that you update each program to get the latest version of their databases before doing a scan. 
*http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
*http://www.superantispyware.com/ - SuperAntispyware
*http://www.microsoft.com/security/scanner/en-us/default.aspx - Microsoft Safety Scanner
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When closing Firefox, after reopening it, my tabs are gone, even though I have Firefox set to remember session.

When closing Firefox, after reopening it, my tabs are gone, even though I have Firefox set to remember session. However, after several hours and opening and closings of Firefox, it will open tabs from the old session, for no apparent reason.

You can check for problems with the sessionstore.js and sessionstore.bak files in the Firefox profile folder that store session data.
Delete the sessionstore.js file and possible sessionstore-##.js files with a number and sessionstore.bak in the Firefox profile folder.
*Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)
*http://kb.mozillazine.org/Profile_folder_-_Firefox
*http://kb.mozillazine.org/Multiple_profile_files_created
Deleting sessionstore.js will cause App Tabs and Tab Groups and open and closed (undo) tabs to get lost and you will have to recreate them (make a note or bookmark them if possible).
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*Tools > Options > Privacy > Firefox will: "Use custom settings for history": [X] "Clear history when Firefox closes" > Settings
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After closing Firefox, at times I have to use task manger to shut down firefox.exe*32 at times,

As my title says, after closing Firefox, at times I have to use task manger to shut down firefox.exe*32 at times. I've left it running for up to 5 minutes to see if it shuts down/closes and it doesn't. I've also reloaded Firefox. My system is a Lenovo H210 with 3 gig of Ram and no added video card, the OS is Windows 7 Ultimate 64 bit SP1. I realize the memory is on the small side. I did try to update VLC player this morning to V 2.1.2 but it fails to run after instal due to file errors.
Bill

Hello,
'''Try Firefox Safe Mode''' to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.
''(If you're not using it, switch to the Default theme.)''
* On Windows you can open Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* On Mac you can open Firefox 4.0+ in Safe Mode by holding the '''option''' key while starting Firefox.
* On Linux you can open Firefox 4.0+ in Safe Mode by quitting Firefox and then going to your Terminal and running: firefox -safe-mode (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
* Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
[[Image:FirefoxSafeMode|width=520]]
''Once you get the pop-up, just select "'Start in Safe Mode"''
[[Image:Safe Mode Fx 15 - Win]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshooting extensions and themes]] article for that.
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
''When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.''
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"network.protocol-handler.external.mailto" changes to false upon closing Firefox

I've tried to troubleshoot why I can't get gmail to work as Firefox's email mailto app for quite a while now. A while ago I stumbled on this solution: I changed the "network.protocol-handler.external.mailto" string to true and it worked perfectly. However, now whenever I close my browser, the string returns to "false"--every time--so whenever I click on a mailto link and untitled blank page pops up instead of an email handler. Any ideas? I'm running Windows 7 64-bit and have Firefox 3.3.6 installed.
== This happened ==
Every time Firefox opened
== It seems like since I installed Windows 7 but I can't be sure.

I assume you have tried toggling the setting in Firefox between Outlook and, say, Gmail:
orange Firefox button ''or'' classic Tools menu > Options > Applications
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You also might want to toggle the setting at the OS level between Microsoft Outlook and the native Windows Mail client in a similar fashion. In Windows XP you could use IE's Options dialog, Programs tab, for this, but I'm not sure in Windows 7.
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I will think that I have closed Firefox, I will go to open it again and I will get a message that it is still running on my system and my system must first be restarted. I am using a special Laptop desk for it. Sorry so long.

I've been on it a bunch lately, plus I tend to watch a lot of movies, back to back, streaming, from Netflix. My laptop was hacked so badly that it was taken back to factory settings and I now use Glary Utilities and CCleaner every two weeks. I use AVG as antivirus. Monthly I run Glary, CCleaner, Malwarebytes' Anti-Malware, Disk Cleanup and Dfrag.
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Can somebody dummy their answer down, please? I will give you more details if you ask for them. I don't know what other details to give. I did read through the other options, and this is what fit me the best, I thought. Who knows. Thanks, Tigerstripe

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More detail in item '''#38 Firefox already running '''
of
[http://dmcritchie.mvps.org/firefox/firefox-problems.htm#fx4interface Fix Firefox 4.0 toolbar user interface, problems (Make Firefox 4.0 look like 3.6) (#fx4interface)]
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Does if help if you check the security tab in the properties of the file and remove a possible internet protection?
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*http://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/
Do a malware check with several malware scanning programs on the Windows computer.
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*Malwarebytes' Anti-Malware: http://www.malwarebytes.org/mbam.php
*AdwCleaner: http://www.bleepingcomputer.com/download/adwcleaner/ http://www.softpedia.com/get/Antivirus/Removal-Tools/AdwCleaner.shtml
*SuperAntispyware: http://www.superantispyware.com/
*Microsoft Safety Scanner: http://www.microsoft.com/security/scanner/en-us/default.aspx
*Windows Defender: http://windows.microsoft.com/en-us/windows/using-defender
*Spybot Search & Destroy: http://www.safer-networking.org/en/index.html
*Kasperky Free Security Scan: http://www.kaspersky.com/security-scan
You can also do a check for a rootkit infection with TDSSKiller.
*Anti-rootkit utility TDSSKiller: http://support.kaspersky.com/5350?el=88446
See also:
*"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked
*https://support.mozilla.org/kb/troubleshoot-firefox-issues-caused-malware

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When closing firefox 4, it remains active on task manager..

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See "Hang at exit":
* http://kb.mozillazine.org/Firefox_hangs
* [[Firefox hangs]]

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Question
When I open 2 or more browsers of Firefox, click to open and close email it pops up the First Firefox browser since I have verrsion 6 as of yesterday. And some times the tool bar dosen't appear or have to refresh it.

Question
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See:
* http://kb.mozillazine.org/Recovering_a_missing_profile
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See "Hang at exit":
*http://kb.mozillazine.org/Firefox_hangs
*https://support.mozilla.com/kb/Firefox+hangs
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* https://support.mozilla.com/kb/Firefox+is+already+running+but+is+not+responding

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Hub

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No pop up on closing FireFox

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