My firefox has recently began to hang periodically.

Often for up to a minute, and the computer registers it as 'not responding' although it usually starts to after a few seconds if I leave it. Usually. I disabled all addons, and reinstalled firefox, it persists. I can think of nothing I changed before this began.

I am having the exact same problem. Identical symptoms. I have tried everything suggested. Clean install, reset, running without plugins, checked virus killer, checked firewall, checked for malware and viruses, nothing. This problem only started after upgrading to Firefox version 22. I am running Windows 7 64 bit. Please look into this problem. After searching the internet quite extensively I can tell you that it doesn't appear to be a new problem. The pages will stop loading or rather they are loading but nothing actually appears, at random intervals. Sometimes it can go hours before a problem sometimes minutes or seconds. The only way to get webpages to load again is to kill firefox (including in the task manager) and restart. The program hangs in the task manager as if it has crashed.

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ITunes has recently began corrupting my music library and my Podcasts. An exclamation mark has appeared at the beginning of a random number of songs and against some Podcasts with the result that they will not play on iTunes. Message is that iTunes cannot

iTunes has recently began corrupting my Music and some of the Podcasts. An exclamation mark appears at a random selection of songs - about a thoussanad of them - and they will not play as iTunes says that it cannot locate the file. This also has happened on a number of Podcasts. Any one else encountered this?

This happens if the file is no longer where iTunes expects to find it. Possible causes are that you or some third party tool has moved, renamed or deleted the file, or that the drive it lives on has had a change of drive letter. It is also possible that iTunes has changed from expecting the files to be in the pre-iTunes 9 layout to post-iTunes 9 layout,or vice-versa, and so is looking in slightly the wrong place.
Select a track with an exclamation mark, use Ctrl-I to get info, then cancel when asked to try to locate the track. Look on the summary tab for the location that iTunes thinks the file should be. Now take a look around your hard drive(s). Hopefully you can locate the track in question. If a section of your library has simply been moved, or a drive letter has changed, it should be possible to reverse the actions.
Alternatively, if you are running Windows (you've posted in iTunes for Windows, but your sig mentions Mac OS X...), and as long as you can find a location holding the missing files, then you should be able to use my FindTracks script to reconnect them to iTunes.
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I have Dreamweaver CS3 on a PC with Windows Vista SP2. The program recently began to hang when opening previously created HTML files. How do I fix this?

I have Dreamweaver CS3 on a PC with Windows Vista SP2. The program recently began to hang when opening previously created HTML files. How do I fix this?

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My 27" 2010 iMac has recently began freezing and movement on the display is molasses slow. We have 500 gigabytes available and no applications running and the problems still persist. Any advice?

My 27" 2010 iMac has recently began freezing and movement on the display is molasses slow. We have 500 gigabytes available and no applications running and the problems still persist. Any advice?

IF your system is running extremely slow with no applications running other than Finder then I'd suspect a failing HD or you have a runaway process somewhere. Open Activity Monitor (Applications - Utilities - Activity Monitor) and look to see if you have any applications taking a large %CPU, if you do that is your problem. To test the HD run Apple Hardware Test, please read:
http://support.apple.com/kb/HT1509
to learn how to run AHT on your machine, also run it in EXTENDED MODE so it does the most complete test. If no errors are found after the first pass run it another 2-3 times to be thorough.

Firefox has recently started freezing and unfreezing, how do I fix this?

As noted above Firefox seems to be having trouble with freezing, I have reinstalled Firefox, Java, and Adobe Flash, all without any success. I am not having such trouble with IE running on the same computer, and going to the same sites. This has happened several times while I type this little bit of text. The text that I input finally shows up, but some mouse clicks don't get through, and I have to make them again.
Edit: I also have cleared the cache, recent history, and deleted all cookies trying to fix this issue.
New edit 12/22/2011: I have now uninstalled 8.0.1, and installed 9.0.1, with the same bad results. I really want Firefox working for me again.

Thank you for your reply.
The problem self corrected about a month after I posted that, and I forgot that I had made the post.
It may interest you to know that I only have addons of the plugin type. There are eleven of them, and six of those have had updates with the sort of timing that leaves me not knowing if any of them had an update around the start of the problem, or around the end of it. their most recent updates were at least 1 month after the problem ended, and I have no record of any updates before that time. Two of those six are Java plugins, two are shockwave plugins, even though I don't know exactly when they were updated, I do know that they were updated at lease once during the time I had the issue, and those updates didn't fix it. Leaving only a Google update, and Pando web plugin for suspects.
In my OP I likely should have mentioned that in the past I had had short periods with this problem as well, and it always had self corrected in just a few days. The problem wasn't as severe in the earlier cases ether. Next time it happens I will try your method and see if I can end the problem on the spot. The down side to that is that if it's not the Google or Pando plugins, it would have to be one of the ones that most everyone depends on for much of their enjoyment on the web.
Is there anything else you can think of that could be suspect? BTW, I maybe should mention that I don't allow any extra tool bars to install on my browser, It's part of how I like my web experience.

Firefox has recently started locking up whenever I try to open some websites, and it then starts to hog computer resources by going up to use 50-60% of my CPU where it typically uses 5-15%.

I have had issues within the last three weeks or so where Firefox will lock up when accessing websites like deviantArt.com or Facebook, and sometimes even Google searches. When trying to load these sites, sometimes the program locks up and starts using 50-60% of my CPU and sometimes a steadily increasing amount of RAM. The only way I can fix it is to go into Task Manager and kill the program, then restart Firefox. This isn't always a fix, either, as sometimes the same exact problem immediately occurs when I reload Firefox and have to kill it again through TM. I typically have four to six tabs open, and have never had issues with Firefox like this before the approximate date of the 17th of September. Could this issue have been caused in the more recent updates?

try this:
For me the solution was the network.http.max-connections setting. Lowering this setting from it's default of 256 to 32 fixed the issue. If you haven't tried changing this maybe give it a go by typing about:config into your address bar, then click on the network.http.max-connections setting and changing the value to 32.

Firefox has recently started crashing several times each day. This does not appear to be related to any particular website but happens when I try to follow a link or close a tab. Why?

It has crashed at least 64 times since 11 August and never before that. That is the total number of reports in about:crashes.
The signature on the two reports I have queried is LookupNPP

Hey thanx for the help, it worked like a charm.
I think firefox changed the application lay out, as I used to be able to choose my PDF opener from the list at " Adobe Acrobat Forms Document' where I could choose Nitro-PDF reader, but it has now moved all the way to the bottom like you suggested to the obvious place of "Portable Document Format" section.
If someone didn't tell me , I wouldn't have scrolled all the way down to be able to find it... it really should be with all its cousins up the top...
Cheers again..

Firefox has recently become extremely heavy on my CPU

For some reason, Firefox (5.0) has become EXTREMELY heavy on my CPU. Watching the monitor widget, I can see that it is currently using up 28% of my CPU (The number fluxuates often) when it used to only take up around 5-10%. As I look into the task manager, I see it is the process "Plugin container.exe" that is causing it. I've disabled most of my plugins, mainly the ones I don't use very often or the ones I can simply turn on when they are needed. I currently have running: AdBlock Plus 1.3.9, Quick Time 7.6.9, Shockwave Flash 10.3.181.26 and Silverlight 4.0.60351.0.
What should I do?

It's possible that you are having a problem with some Firefox add-on that is hindering your Firefox's normal behavior. Have you tried disabling all add-ons (just to check), to see if Firefox goes back to normal?
Whenever you have a problem with Firefox, whatever it is, you should make sure it's not caused by one (or more than one) of your installed add-ons, be it an extension, a theme or a plugin. To do that easily and cleanly, run Firefox in [http://support.mozilla.com/en-US/kb/Safe+Mode safe mode] (don't forget to select ''Disable all add-ons'' when you start safe mode). If the problem disappears, you know it's from an add-on. Disable them all in normal mode, and enable them one at a time until you find the source of the problem. See [http://support.mozilla.com/en-US/kb/Troubleshooting+extensions+and+themes this article] for information about troubleshooting extensions and themes and [https://support.mozilla.com/en-US/kb/Troubleshooting+plugins this one] for plugins.
If you need support for one of your add-ons, you'll have to contact its author.
If the problem does not disappear when all add-ons are disabled, please tell me, so we can work from there. Please have no fear of following my instructions to the line, as all can be easily undone.

I have my FireFox browser set to delete the history when I close the window. It was working for a while and has recently just stopped with no changes to the settings.

I have my FireFox browser set to delete all the history when I close the window. It was working for a very long time and has recently stopped with no changes to the settings. This has happened once before and I deleted FireFox and re-downloaded it, that solved the problem for a short period of time but the issue has come up again. How can I fix this?

Can you check your configuration again? Maybe something went pear-shaped somewhere. It's located in Tools | Options | Privacy and then click the Settings button (see screenshot).

Firefox has suddenly gone wrong. I was successfully running both Firefox and Internet Explorer 8 on Windows 7. I auto-accept upgrades including the most recent Firefox upgrade and the suggested upgrade to Adobe Flash 10.1. But after this, Firefox stopped

Firefox has suddenly gone wrong. I was successfully running both Firefox and Internet Explorer 8 on Windows 7. My laptop is new and has plenty of RAM and HDD. I auto-accept upgrades including the most recent Firefox upgrade and the suggested upgrade to Adobe Flash 10.1. But after this, Firefox stopped working and does not work when I re-load Firefox 3.6. Also IE8 now works very slowly and does not locate major websites like Microsoft without a 'can't find the website message' and having to pressing Return a second time. When I do get to the Mozilla website and click on the button to try to download Firefox 3.6.6, I get this message "Oops! Internet Explorer could not find mozilla3.snt.utwente.nl". Can you help with what has gone wrong? As it stands, I can't use Firefox at all. Note: because Firefox did not work after the upgrade, I've downloaded the IE8 version of the Adobe Flash 10.1. What I really want is to be able to use both Firefox and IE8. But is this possible if they use different versions of Adobe Flash?
== This happened ==
Every time Firefox opened
== About 2-3 days ago ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; GTB6.5; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; Tablet PC 2.0; .NET4.0C)

I have been having the same problem as the original poster. After upgrading to Ffx 3.6.6, the program asks you to upgrade to Flash Player Plugin 10.1. I download and installed 10.1 only to find videos weren't loading.
In my case, the problem is the previous installation of Flash Player (9.0.47) was somehow messing things up. To fix this, because I already had Flash plugin 10.1 installed I had to uninstall 10.1 using the uninstaller from adobe and then manually remove any files related the old flash player plugin 9.0.47
Here is a run-down of my process:
0. To check if you have a previous installation of the Flash Plugin lurking around, in Firefox go to Tools -> Add-ons -> Plugins (tab). At this point you may seen both Flash plugins.
1. Proceed to uninstall Flash Plugin 10.1. Adobe provides an uninstaller here: http://kb2.adobe.com/cps/141/tn_14157.html
( you have to make sure you have nothing running when you execute the installer).
2. On my Mac (sorry I don't know what it is in Windows) I searched the hard drive for any files/folders with "Shockwave". I found a folder called "Shockwave 10". It wasn't removed by Adobe's uninstaller. For safety I deleted it and then emptied the trash.
3. I then went to My HD -> Library -> Internet Plugins.
Remove the file and folder named "Flash player.old"
4. Restarted; ran the Adobe Flash Player 10.1 installer. Restarted again.
5. Opened up ffx and double checked the plugins list (see step 1). Version 10.1 is installed and available. Went to problem sites to test it out and Success!
Hope this helps.

After the recent update My Firefox has become unresponsive alot.

I don't know why but now Firefox has become so unresponsive.
It particularly happens when I visit Youtube.
It almost become impossible to even close it.

* https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding
* https://support.mozilla.com/en-US/kb/Firefox%20hangs#w_hang-at-exit

Firefox crashes when it is open for a period of time telling me plugin container for Firefox has stopped working.

I have Windows Vista with Firefox. When on-line for a period of time Firefox crashes and tells me plugin container for Firefox has stopped working.

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

Ever since installing on my 64bit Windows 7 install, Firefox has continually gotten more sluggish as time moves on, hangs for 10-15 secs at a time and just gets worse over time with the updates and everything.

Ever since installing on my 64bit Windows 7 install, Firefox has continually gotten more sluggish as time moves on, hangs for 10-15 secs at a time and just gets worse over time with the updates and everything. It was fast when I first installed, but over the last six mos has slown to a crawl.

upgrade your browser to Firefox 8 and try
* getfirefox.com

Firefox has become extremely slow in the recent times

Firefox suddenly has become very slow. It takes too much time to load all websites and even the typed words and scrolling has a great delay in appearing. It becomes unresponsive very often. I tried reinstalling it and even reset it. Its becoming a pain to use this to surf the net. Please do help!!

I also have found that Firefox has become a dog. I've followed one thread that disabled the plugin-container with no help. 20.0.1 can hang for over a minute and actually hog my entire CPU so I can't even start Chrome! I like my FF plug-ins, but the performance problems of FF 20 are becoming intolerable and no one seems to know what the heck! Chrome does not present the problems and I have been visiting and working at the same websites. If many folks are encountering this mess, I suspect that FF is done for. I have actually found that the Android FF is also tending to slow down my smartphone - stall it! I am a few days away from just removing FF from my computing life.

I recently installed 7.0.1 on two Windows 7 Enterprise x64 systems. Now everytime I close Firefox I receive an error "Firefox has stopped working" and I have to click close. Works fine on a Windows XP SP3 x86 machine.

"Firefox has stopped working"
"A problem caused the program to stop working correctly. Please close the program."
I tried installing two ways; clean and upgrading from 6.0.2. I receive the same error message upon exit.

I followed the troubleshooting guide for extensions and themes, and still have the issue.
I modify the package to redistribute with SCCM, and I like to modify Firefox manually. This process has worked fine until 7.0 or 7.0.1. I extract the files from firefox setup 7.0.1.exe, then I extract the files from omni.jar, so I can modify settings in firefox.js to remove updates, setting firefox as the default browser, etc.. I run setup.exe and include a setup.ini as part of my installation command line to remove icons.
I tried just extracting .exe, and the files from omin.jar but not modifying anything and left out the .ini file and it still fails to close properly.
Like I said the above process works fine on XP.
If I install 7.0.1 via the download .exe on Win7 Enterprise x64 it works fine. I'm still looking into it.

My firefox has recently began to hang periodically.

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