When I close Firefox 4.0 RC2, I have four or more instances of "plugin-container.exe" spawn before Firefox (and all of the spawned processes) close. Is this normal/intended behavior?

These processes seem to be independent of the normal plugin-container process spawned for Flash.

Probably the easiest way is to download Firefox again from http://www.mozilla.com and re-install it.
If you want to disable plugin-container, see the section on "Disabling crash protection" at http://kb.mozillazine.org/Plugin-container_and_out-of-process_plugins

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On eBAY, I can't use the sort feature, or enlarge, or watch this item - I used to be able to do this with firefox and all of the sudden it stopped working. I think it was the latest update to Mozilla Firefox. What can I do?

eBAY has stopped working the way it used to with Firefox, my browser. Sort, enlarge photo, watch this item - they all don't work anymore.
== URL of affected sites ==
http://ebay.com

Firefox 3.6.4 and 3.6.6 use a process called, "plugin-container.exe" which was using up most of my CPU when I opened up multiple tabs that contained Adobe Flash files, and caused Firefox to lock up.
My solution was to use Firefox 3.5.10 which you can get from the Mozilla website at [http://www.mozilla.com/en-US/firefox/all-older.html]
I am using Adobe Flash 10.1.53.64 without any problem in this version of Firefox. Check the release notes, I believe it contains all the latest security fixes in "Firefox 3.6.4".
Hopefully, they will fix Firefox 3.6 in the next version (e.g. Firefox 3.6.7), until then you should probably use "Firefox 3.5.10".

I can't use the (sort by )feature, or open the emages to watch this item - I used to be able to do this with firefox and all of the sudden it stopped working

I tried to log in :
http://uae.dubizzle.com/motors/used-cars/land-rover/range-rover-sport/?price__gte=&price__lte=&year__gte=2006&year__lte=2009&kilometers__gte=&kilometers__lte=&seller_type=&keywords=&is_basic_search_widget=0&is_search=1&added__gte=&company_item_id=&auto_agent=
I can't use the
- (sort by )feature Lowest to highest for example ,
- or open the emages to watch this item
I used to be able to do this with firefox the old version and now all of the sudden it stopped working,
I tried to clear cash & coockies & un install and reinstall fire fox but nothing works.

You can try these steps in case of issues with web pages:
Reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.
*Hold down the Shift key and left-click the Reload button
*Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
*Press "Command + Shift + R" (Mac)
Clear the cache and cookies only from websites that cause problems.
"Clear the Cache":
*Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"
"Remove Cookies" from sites causing problems:
*Firefox/Tools > Options > Privacy > Cookies: "Show Cookies"
Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
*Do NOT click the Reset button on the Safe Mode start window.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

When I downloaded Firefox and opened it the page is only 1/4 of the size of the screen and in the center only. how do I make it fit the screen???

Some web pages only show as a four inch strip down the middle of my screen. Some information gets cut off from the web page. Increasing the font size does nothing to help.

You may have accidentally set the page zoom by using the keyboard shortcut to zoom out.

Installed Firefox 8.0 and plugin container.exe makes pc hang with 99% cpu usage, how can I fix this?

All extensions and add ons are disables other then flash player. Flash player is needed for the webpage.

Reboot. Uninstall Firefox, then use another browser to download and install a new copy of Firefox from mozilla.org/firefox - see [[Installing Firefox on Windows]] for more help.
See also the post [https://support.mozilla.com/en-US/questions/901329 Firefox 8 Memory Leak]
Please mark this issue as "Solved" if it solved your issue, or post back if it did not.
Edited to add link to similar thread

I was browsing in Firefox, and all of the sudden, I am unable to use the pgup/pgdown buttons in FF. However, I am able to use them in Internet Explorer, and in other programs. Can you please help?

The "home" and "end" keys work, but not the pgup/pgdown. It's not a problem with the keyboard, since those keys work in any other program I try.

caret caret (F7) problems, Most keyboards have overlaid keys, make sure NumLk is off as that can also interfere. "PgUp", "PgDn", "SpaceBar", "Home" and "End" keys" not working -- caret cursor F7
*https://support.mozilla.com/en-US/questions/845663

[Serious BUG] Youtube crashes to death; fresh Windows 7 install; firefox and plugins updated; plugin-container.exe disabled; noway

This happens to me and to two friends of mine. So it's hardly a coincidence.
I have done a fresh Windows 7 install (for other reasons) so I thought this problem (which I had since about version 8.0) would disappear. I was wrong.
Firefox and plugins are updated:
Firefox 13.0
Shockwave Flash 11.3 r300
GPU video drivers are also updated.
I came across the "plugin-container.exe solution" but it didn't solve the problem.
How to reproduce the bug.
Visit Youtube and click on some video. Minimize Firefox. Wait some seconds. Next time you restore the window Firefox crashes, you have to kill plugin-container.exe from the task manager OR you have to restart the entire browser in case you've disabled the plugin container.
The same bug should occur when having various tabs open and one of them is Youtube with a video playing. But also when Firefox has no focus and you have other windows on top of it (and a Flash video running or even paused).
Since this does happen:
-with a fresh install;
-with everything updated;
-even disabling the plugin controller;
it seems very very strange to me that this problem is STILL present since version 8.0 (or even before) and that there is so few reports of this bug around the internet.
I'm not complaining here, I'm just showing my perplexity about almost noone having this bug which is ruining my (and my friends') Firefox experience since the past years.
My purpose here is:
* to let you know about this problem;
* to know if other are experiencing it;
* hopefully to keep giving support to this thread and answer to your questions about this bug so to help this thing being fixed;

For problems that occurred with Flash 11.2 and earlier, you might want to consider disabling graphics hardware acceleration in both Flash and Firefox.
'''Flash'''
Right-click any video in Flash Player and choose Settings.
Clear the checkbox for "Enable hardware acceleration"
'''Firefox'''
Save all work (e.g., mail you are composing, online documents you're editing, etc.).
orange Firefox button ''or'' classic Tools menu > Options > Advanced
On the "General" mini-tab, uncheck the box for "Use hardware acceleration when available"
Restart Firefox.

Plugin-container.exe. I realise this has been raised before but there never seems to have been any firm reply from Firefox as to how to rectify the problem, as I have just had 94% use of my CPU by this and my use is so slow it is impossible. Emjayel

plugin-container.exe is a disaster and looking at previous forums it has been so for at least a year without any resolution. As I said before at one stage this was using 94% of my CPU and my system was reduced to a snails pace.
Surely Firefox should give some useful alternative.
Emjayel

Try going to http://www.mozilla.org/plugincheck and see if your plugins are out of date.

When I open firefox it is returning to the last viewed page instead of my homepage even though I have the settings set to clear history every time I close Firefox. I check and all of the previous history is still there and not deleted..

When I open firefox it is returning to the last viewed page instead of my homepage even though I have the settings set to clear history every time I close Firefox. I check and all of the previous history is still there and not deleted..

Make sure that Firefox closes properly and that that there are no longer Firefox or plugin-container processes left on the Processes tab in the Task Manager. Otherwise session restore will reopen the page(s) from the previous session.
See "Hang at exit":
* http://kb.mozillazine.org/Firefox_hangs
* https://support.mozilla.com/kb/Firefox+hangs

When I open Firefox, it goes to the first page and then stops, saying "Not Responding" with the cursor spinning. What can I do to fix this? Thanks for any help

When I open Firefox, it goes to the first page I open, but then stops and says "Not Responding" with the mouse cursor spinning. I hit the close button and it says Windows is searching for a solution (which doesn't come).
When I open Firefox again, it says:
Well, this is embarrassing.
Firefox is having trouble recovering your windows and tabs. This is usually caused by a recently opened web page.
You can try:
Removing one or more tabs that you think may be causing the problem
Starting an entirely new browsing session
Any ideas? I gretly appreciate any help. Thanks!!

What is that first page?
Can't you open any web pages in Firefox?
Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance/Themes).
*Don't click the Reset button on the Safe mode start window or otherwise make changes.
*https://support.mozilla.org/kb/Safe+Mode
A possible cause is security software (firewall,anti-virus) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.
See:
*https://support.mozilla.org/kb/Server+not+found
*https://support.mozilla.org/kb/Firewalls

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]]

I get this error message when I open Firefox and when I go between tabs TypeError: PC_PREF_OBJ is undefined

I get this message when I open Firefox and when I go between tabs.
TypeError: PC_PREF_OBJ is undefined
I have tried to re-install, but that doesn't help.

If you close Firefox, then start Firefox in Safe Mode, does the problem still occur? For instructions on starting in Safe Mode, see [[Safe Mode]].
Extensions can sometimes be the cause of problems. If the problem does not occur in [[Safe Mode]], then you can disable your extensions one-by-one until you find out which one is causing the problem.
See [[Troubleshooting extensions and themes]]

When use "Clear history" firefox 4 create to much processus plugin-container.exe process

Hi,
When i clear History , Cookie, etc.... i see in the process manager any more process for plugin-container.exe
See screenshot : http://i52.tinypic.com/spvtq1.png

Twice recently my main XP system has begun to run extremely slowly and has taken a very long time to shut down. Investigating yesterday, I found that plugin-container.exe was hogging memory, using 250Mb. Available memory went don as low as 6 Mb. As I closed programs it grabbed more, eventually peaking at 400Mb. There were several tabs open, so I closed them one by one, and it was clear that one web site had triggered this problem. I suspect that there had also been memory leakage, with an area of memory no longer available. Eventually the system did close down, but it took 20 minutes. Firefox 4.0.1 is installed.
Same problem occurred with a laptop on which 4.0.1 has just been installed.

I looked on my C:\ for plugin-container.exe and deleted the file as it kept slowing down my computor, however now when I load firefox it crashes, how can I re-install this plugin to disable it properly?

My computor had been overly slow which was not normal when looking at processes running in task manager I found plugin-container.exe to be using alot of memory. I looked online and found that this was an update of firefox which was not essential, I then looked on my C:\ drive for the application and deleted it hoping this would solve the problem as I could not find it when looking at my firefox plugins. However now when I open firefox it quickly crashes, how can I reinstall this? Do I need to reinstall firefox completely or is there a more simple solution? I have done the firefox plugin check and it can find no problems.

Probably the easiest way is to download Firefox again from http://www.mozilla.com and re-install it.
If you want to disable plugin-container, see the section on "Disabling crash protection" at http://kb.mozillazine.org/Plugin-container_and_out-of-process_plugins

I am trying to download a variety of files and when it is finished, the Mac freezes up and the task bar continues to blink on and off. I have to go into Firefox and actually quit the application to continue. Any help is very much appreciated

I am trying to download a variety of files and when it is finished, the Mac freezes up and the task bar continue to blink on and off.
I have to go into Firefox and actually quit the application to continue. Any help is very much appreciated.

are you backing up files, or doing a Time machine backup, either way, the Time machine will STOP when finished and show "last backup at XXXXXX" meaning its done...... OR if when transferring files, it will show a progress bar on your desktop and vanish when files are copied.
Open up the Hitachi drive (your G drive is made by Hitachi, and the best made by the way).....and see if the files are there.
a MORE VISUAL way is to open the hard drive file, and drag and drop files INTO the Gdrive and you can see them visually be copied there as you do it.
To see your HD on your desktop GOTO FINDER......PREFERENCES....then GENERAL TAB.........check the box marked HARD DRIVES.........then your Gdrive will appear on your desktop........open it from there, and DRAG and drop files from anywhere INTO the Gdrive....... easy visual way to see the files being copied into the Gdrive.

When I close Firefox 4.0 RC2, I have four or more instances of "plugin-container.exe" spawn before Firefox (and all of the spawned processes) close. Is this normal/intended behavior?

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