Firefox crashing---most likely related to the plugin container issue, but also unable to uninstall firefox, there is no prompt that opens when I try to.

Like many others, I've been having issues with firefox since the update. The plugin container seems to crash my browser, or freeze the whole of my computer, and I must restart. I've switched to internet explorer for now.
Moreover, now Firefox doesn't even seem to open now. I doubleclick on the icon, or try to launch the browser in any way, and it looks like it thinks about opening, but nothing ever occurs. I've watched my system processes, and firefox.exe appears for a moment, and then disappears, like its process has ended, but I've done nothing.
Additionally, I can't even seem to uninstall firefox---the uninstall setup doesn't open, and trying to do it from add/remove programs on windows xp doesn't seem to work either.
I also sometimes get an error that says windows can't find a file/path, related to a 'profile' but haven't had that for a day or so---since I can't even open firefox now.
== User Agent ==
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

Hello sprytely, go for a clean re-install, this means you '''remove Firefox program files''' and then reinstall Firefox. Please follow these steps:
'''Note:''' You might want to print these steps or view them in another browser.
#Download the latest Desktop version of Firefox from the next full installer https://www.mozilla.org/en-US/firefox/all/ and save the setup file to your computer.
#After the download finishes, close all Firefox windows (click Exit from the Firefox or File menu).
#Delete the Firefox installation folder, which is located in one of these locations, by default:
#*'''Windows:'''
#**C:\Program Files\Mozilla Firefox
#**C:\Program Files (x86)\Mozilla Firefox
#Now, go ahead and reinstall Firefox:
##Double-click the downloaded installation file and go through the steps of the installation wizard.
##Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.
More information about reinstalling Firefox can be found [[Troubleshoot and diagnose Firefox problems#w_5-reinstall-firefox|here]].
WARNING:Do not use a third party uninstaller as part of this process. Doing so could permanently delete your [[Profiles|Firefox profile]] data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be easily recovered unless they have been backed up to an external device! See [[Back up and restore information in Firefox profiles]]. 
Thank you.

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I cabn get into AOL on Firefox, but cannot read my e-mails there. It hangs up "loading" when I try to open an e-mail.

== Issue
==
Firefox is having problems with certain web sites
== Description
==
I can get into AOL on Firefox, but cannot open e-mails. It "hangs" on loadfing an e-mail when I try to open one.
== URL of affected sites
==
http://www.aol.com
== Troubleshooting information
==
I just get a loading message with my wheel turning, but it just hangs and doesn't open.
== Firefox version
==
3.6.6
== Operating system
==
Windows Vista
== User Agent
==
Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.6) Gecko/20100625 Firefox/3.6.6 GTB7.1 (.NET CLR 3.5.30729)
== Plugins installed
==
*-np-mswmp
*1.9.0042.0
*npdnu
*npdnupdater2
*Adobe PDF Plug-In For Firefox and Netscape
*The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
*6.0.12.732
*RealPlayer(tm) LiveConnect-Enabled Plug-In
*RealJukebox Netscape Plugin
*Default Plug-in
*Provides additional functionality on Facebook. See our web site for details.
*Shockwave Flash 10.0 r22
*Adobe Shockwave for Director Netscape plug-in, version 11.5
*iTunes Detector Plug-in
*GEPlugin
*4.0.50524.0
*Office Live Update v1.3
*Virtual Earth 3D 4.00090316005 plugin for Mozilla
*NPWLPG
*RealPlayer(tm) HTML5VideoShim Plug-In
*Google Update

the settings program will not allow me to enter any of those cells. the accounts section is all in grey scale (not black) and none will open including "add account"

Since the plugin container update, firefox keeps freezing when opened and on certain sites.

''(locking this old thread. If you have this issue then please create a new thread - c)''
Not sure if its because of the plugin container update but issues began around that time. When I open firefox sometimes its frozen, all i can do is close it down and open a new window. it does not say "(not responding)" like when it crashes, i just cannot type, click bookmark or anything. in particular the site on http://forum.breakbeat.co.uk/, to post messages on there an new box opens, this also freezes in the same manner, only works again if firefox is reset, or sometimes begins to work again by itself, 10 minutes later or so....
PLEASE NOTE: this is not the usual form of crashing, or whatever the technical term is, it simply freezes, yet i can click the "x" in the corner and it instantly recognizes that. when a box opens in a site that crashes, i can still use other tabs/windows of firefox no problem, just not the site... the site is not experiencing issues, already asked them.
thanks
== URL of affected sites ==
http://forum.breakbeat.co.uk/

Same here. Win7 64bit, Firefox 3.6.6, Flash Player 10. It all started after the last Update, few weeks ago. Firefox is freezing when loading videos (ex:youtube) and can only be stopped by killing the process in the task manager. Firefox works normal thou after killing the firefox "plugin-container.exe". It would be nice if somebody from Mozilla would pay some attention to this issue.
Iulius

Is it possible to disable the plugin-container in Firefox 14?

With an older version of Firefox, I was able to disable the plugin-container by typing in 'about:config' in the toolbar, typing 'ipc' in the search bar on that page, then changing the value of the executable (or whatever it's called) for the plugin-container to 'false', and, finally, restarting Firefox.
However, even after doing that in Firefox 14, it still runs when I use Flash applications. Does anyone know another way to disable the plugin-container? Because in my honest opinion the plugin just causes more lag since it takes up a lot of memory (at one point it was at 100,000 k, which is ridiculous).
Sorry if someone has posted this question before.

I actually found that Flash Player started functioning normally again after I disabled protected mode. I tried toggling the plugin container on and off with protected mode off in flash, and it made no difference in the videos lagging.
In all honesty, this really isn't a problem with Firefox and the plugin container. It's a problem with Adobe using the public to beta test a feature that shouldn't be published just quite yet.

Tabs are no longer loading, I have disabled addon's, killed the plugin-container, nothing helps

Worked fine earlier this week. Now, the saved tabs (from session manager) just do not load. A few do but only 2-3 out of 16. I've disabled most addon's, stopped the plugin container, performed all MS updates for XP, downloaded 3.6.10 of Firefox, nothing helps. I give up.

I solved the code problem myself after a careful run through of the code, the "else" in my subclass made it so that every button other than the Add button deleted a selected entry, i quickly fixed it and made it an if statement.
Thank you for the link cotton.m
My question bout optimizing still remains though:In the beginning of my code i have it loading the entire library with the *, and i noticed after turning it into a .jar that it loads slower than i expected... would a way to speed it up be to specify exactly what i need loaded after the program is finished or would it make no diffrence?

When I open Firefox the following alert appears: "Could not initialize the application's security component. The most likely cause is problems with files in your application's profile directory." There is a solution in the forum but only for Windows based

When I open the application the following alert appears: "Could not initialize the application's security component. The most likely cause is problems with files in your application's profile directory." There is a solution on the support site but only for Windows-based Firefox, and I'm a Mac user. I have plenty of room on my hard disk.
== This happened ==
Every time Firefox opened
== Two days ago, for no apparent reason.

In Mac OS X v10.7, the $HOME/Library folder is a hidden folder.
Open Finder and use one of these:
* Go > Go To Folder (Shift-Command-G) and in the dialog type: ~/Library
* Open the "Go" menu and hold down the Option key to make the Library appear
You can also use this command in a Terminal window to remove the hidden flag.
* Mac HD > Applications > Utilities > Terminal
* chflags nohidden ~/Library

I am runnig Firefox 18.0.1 and the plugin-container is using all my ram, have tried altering dom.ipc.plugins to false but makes no difference. Any advice please

I am running Firefox 18.0.1 and the plugin-container is using all my ram, have tried altering dom.ipc.plugins to false but makes no difference. Any advice please

plugin-container.exe is used to run Flash and other plugins so if they crash they do not take down your main Firefox session. But... I don't think memory usage would be that different if you tricked Firefox into running Flash inside firefox.exe. (There was a thread with the trick, but I can't recall the details. It was not a regular Firefox setting.)

Firefox crashes: Plugin-Container Issue

After the second-to-last update, I started noticing an increase in browser crashes. The issue is always that the Plugin-Container has stopped working. I understand that the plugin container's function is to prevent such problems, but it does not appear to be working. I have the latest version of Firefox, updates, etc, but that doesn't seem to be helping. Crash reports have been sent to Mozilla, but the problem is ongoing. I use my browser heavily in both standard and incognito mode for business. I've used Firefox for a long time, but if I keep losing information mid-process, I'm going to have to consider other options. If anyone has any experience with the problem or suggestions on a possible solution, that would be greatly appreciated.
Thanks,
Nomenica

Tumblr.com. The way the site is set up, I don't believe it shuts down images, etc, once you've loaded and passed them. It's endless scrolling, so that could potentially be a lot of loaded data.

Which is the most up to date version of FF that does not include the plugin-container ?

Hi Good People at Firefox
Firstly may I say that you have created a great product which kicked MS's ass for a long time however I'm now concerned that the latest updates are pushing my poor old desktop to the limit.
Upgraded to 4 today and the dreaded plugin container loaded yet again. On a PC with 512k memory and FF's notoriously bad memory management (i.e. it doesnt release memory when tabbed windows are closed) the plugin container is the last thing I need.
So can you tell me which is the most up to date version of FF that doesnt include the plugin-container option ? i.e. the last version of Firefox before plugin container.
I think it was version 3.?? but now I cannot revert to the previous installation to find out.
Thanks
Michael Dalton

You can disable the plugin-container in any Firefox version that uses it.
* http://kb.mozillazine.org/Plugin-container_and_out-of-process_plugins
You can set the pref dom.ipc.plugins.enabled to false on the about:config page to disable the plugin-container process (OOPP)
To open the about:config page, type about:config in the location (address) bar and press the "Enter" key, just like you type the url of a website to open a website. 
If you see a warning then you can confirm that you want to access that page.

Is there any way to not use the plugin container for firefox?

Is there any way to not use the plugin container for firefox? Ever since I updated, my firefox browser has been crashing almost every day and it always says that the plugin container crashed, but the rest of firefox freezes up as well, so I am forced to end the process itself.

See http://kb.mozillazine.org/Plugin-container_and_out-of-process_plugins
You can set the prefs dom.ipc.plugins.enabled.* to false on the about:config page to disable the plugin-container process.
dom.ipc.plugins.enabled (currently false by default in Firefox 3.6.6)
dom.ipc.plugins.enabled.npswf32.dll (Flash)
dom.ipc.plugins.enabled.npctrl.dll (Silverlight)
dom.ipc.plugins.enabled.npqtplugin.dll (QuickTime)

I get the "unresponsive script" message now for nearly all sites, and sometimes this is followed by the popup box saying that the "plugin contain for Firefox has stopped working."

Many sites now say that a script is unresponsive. And by unresponsive I mean that the whole browser slows to a crawl and it can take ~20 minutes to get 2 pages loaded.
Also, I sometimes get a popup window saying the the plugin container has stopped working.
This whole issue is making Firefox unusable. I cringe to say it, but I'm currently in IE. :-/

See http://kb.mozillazine.org/Plugin-container_and_out-of-process_plugins

Why does Firefox freeze every time I try to install Adobe Flash player? I have uninstalled it and reinstalled it with and without the plugin container.

When I have Adobe Flash player installed and I open Firefox it will freeze up as soon as I open an additional tab other than my home page tab. In order to close Firefox after it freezes I have to use my Windows Task Manager to end process. As soon as I uninstall Adobe Flash player and reboot and then open Firefox it works fine.

Does it help if you disable the plugin-container process?
See http://kb.mozillazine.org/Plugin-container_and_out-of-process_plugins

What is the plugin-container.exe file? How do I get rid of it?I keep getting a 70% usage message about this plugin. I tried to delete it but then Firefox won't work.

What is the plugin-container.exe file? It seems to be using 70% of usage of my computer's memory. How do I get rid of it?

Plugin-container is an "out-of-process plugins" crash protection, see for more info the link, and if you want to disable try the analytical info :
[http://kb.mozillazine.org/Plugin-container_and_out-of-process_plugins Plugin-container and out-of-process plugins]
thank you
Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.

Why does FireFox freeze and the only way to unfreeze it is to open the task manager and close the plugin-container.exe file??? It has been happening more and more often and it is getting VERY AGGRAVATING!!!!!

When Firefox does freeze (not responding appears in parentheses in the page tab) I am not able to access any of the webpages (the entire webpage is hidden behind a vaguely white transparent foreground) and more often than not any files I might be downloading are stopped before the entire file has been transferred - which means that I have to start those downloads from the beginning AGAIN. This has been happening for quite some time and I AM SICK AND TIRED OF IT HAPPENING!!
If it continues to happen for much longer I will swear off FireFox FOREVER!!!!! Either a program works or it does not work and lately Firefox has not worked worth a damn...........
The ONLY way to force Firefox to allow me to access it is for me to end the plugin-container.exe file process using Task Manager. Clearing there is a SERIOUS problem here that has not been resolved - why not???

The pluging container opens up unnecessary copies as the cookies/history are cleared, this is a known issue, it might be what you are seeing, and it is hoped to be fixed in some future release of firerox.
There are some hangs affecting some users, with symptoms being high cpu usage, occurring as bookmark changes or syncing is in progress, there is a work around for that.
Firefox hanging as you close it see:
*[[firefox hangs]]
* [[firefox is already running but is not responding]]

For the past few weeks when I place a bid on ebay, Firefox crashes. The bid goes through but I have to restart Firefox each time. I have sent a report each time and asked to be notified and as of yet I have not got a solution to this problem.

For the past few weeks when I place a bid on ebay, Firefox crashes. The bid goes through but I have to restart Firefox each time. I have sent a report each time and asked to be notified and as of yet I have not got a solution to this problem.

I have had a similar problem with my system. I just recently (within a week of this post) built a brand new desktop. I installed Windows 7 64-bit Home and had a clean install, no problems. Using IE downloaded an anti-virus program, and then, because it was the latest version, downloaded and installed Firefox 4.0. As I began to search the internet for other programs to install after about maybe 10-15 minutes my computer crashes. Blank screen (yet monitor was still receiving a signal from computer) and completely frozen (couldn't even change the caps and num lock on keyboard). I thought I perhaps forgot to reboot after an update so I did a manual reboot and it started up fine.
When ever I got on the internet (still using firefox) it would crash after anywhere between 5-15 minutes. Since I've had good experience with FF in the past I thought it must be either the drivers or a hardware problem. So in-between crashes I updated all the drivers. Still had the same problem. Took the computer to a friend who knows more about computers than I do, made sure all the drivers were updated, same problem. We thought that it might be a hardware problem (bad video card, chipset, overheating issues, etc.), but after my friend played around with my computer for a day he found that when he didn't start FF at all it worked fine, even after watching a movie, or going through a playlist on Youtube.
At the time of this posting I'm going to try to uninstall FF 4.0 and download and install FF 3.6.16 which is currently on my laptop and works like a dream. Hopefully that will do the trick, because I love using FF and would hate to have to switch to another browser. Hopefully Mozilla will work out the kinks with FF 4 so I can continue to use it.
I apologize for the lengthy post. Any feedback would be appreciated, but is not necessary. I will try and post back after I try FF 3.16.6.

Firefox crashing---most likely related to the plugin container issue, but also unable to uninstall firefox, there is no prompt that opens when I try to.

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