Firefox stops responding. I need to exit and restart or reboot the computer.

I do not get an error message - the application simply hangs up during the opening sequence or stops responding when open. Also, some links within web sites do not work. Example: The embedded print command for Google Maps does not work, however, the print command on the tool bar and the keyboard shortcut still work normally.

See "Hang at exit":
*http://kb.mozillazine.org/Firefox_hangs
*https://support.mozilla.com/kb/Firefox+hangs
Start Firefox in [[Safe Mode]] to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.com/kb/Safe+Mode
*https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
See also:
*https://support.mozilla.com/kb/Basic+Troubleshooting

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My 4s has stopped giving me calendar alert sounds and I have rebooted the phone several times and I also have restored from a current backup. HELP!!!!!

My 4s has stopped giving me calendar alert sounds and I have rebooted the phone several times and I also have restored from a current backup. HELP!!!!!

I have done each in succession. First power down and then hold both power and home button to reboot. No success the multiple times I have done it.

Firefox stops responding immediately after startup. I've tried all the recommended troubleshooting methods and cannot figure out why.

I have tried all of the recommended troubleshooting methods but none of them seem to work. This issue began despite no change being made to Firefox, or my computer; it just spontaneously stopped responding after launch.
Not only does Firefox stop responding, but it also prevents any other programs from being launched, and make already launched programs extremely slow. Furthermore, once it stops responding, it becomes impossible to get rid of; the only way is to log off, or restart the computer entirely.

Do a malware check with several malware scanning programs on the Windows computer.
Please scan with all programs because each program detects different malware.
All these programs have free versions.
Make sure that you update each program to get the latest version of their databases before doing a scan.
*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

Firefox stops responding when I try to access anything other than the home page; even after reseting and reinstalling it.

I have tried resting Firefox and even sacrificed all my data (bookmarks, add-ons, saved passwords, the whole shebang) for a clean installation. Firefox Stared hanging and doing the "(Not Responding)" thing with a whited-out window. Thus force me to force close Firefox.
This happened as soon as I updated my computer (running Windows 7) and the Task manager is show high usage of processes. All my other browsers work (Chrome, Safari, and even the god forsaken IE) don't hang when trying to leave the home page, browse fine, and close and reopen perfectly.
Needless to say, I'm annoyed with this development.

''Sashoto Seeam [[#answer-689162|said]]''
<blockquote>
Did you try the minimize memory usage. If not then try it by following method:
- On your navigation bar of Firefox write about:memory
- Click on the button "Minimize memory usage"
Hope it will work!
</blockquote>
Unfortunately, I can't even use the navigation bar without triggering the high process usage thing. So this is not an option.
''cor-el [[#answer-689165|said]]''
<blockquote>
It is possible that your security software (firewall, anti-virus) 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 install 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
*https://support.mozilla.org/kb/fix-problems-connecting-websites-after-updating
You can check if you can start Firefox in [[Safe Mode|Safe Mode]] by holding down the Shift/Options key.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
</blockquote>
Tried this stuff as well. Turned Norton off and it didn't work. Restarted my computer with Norton off, still didn't work. And Firefox didn't wok after I turned Norton back on. Safe mode also doesn't work.

Good day all, I am new to Mac. Just at a time when I am in the middle of something, my Mac will just prompt me to shut down and restart again. The computer will just freeze, and will not respond unless it is shut down and restarted. Is that how it works

Good day all,
I am new to Mac. Just want to find out if your Macs always prompt you to shut down and restart. Mine happens very often sometimes, and it can be very embarrassing, especially just when you think you are almost done with what you are doing, only for you start all over again. Or, is there anything I am doing wrong, somebody please help, Thanks.
Francis.

Hi Francis,
Are you getting kernel panics?
http://support.apple.com/kb/TS3742
http://www.thexlab.com/faqs/kernelpanics.html

When attempting to delete the complete "Browsing & Download History" Firefox stops responding.

Since I had not deleted my browsing history in a few months I attempted to do so today. Firefox stopped responding. After waiting around 10-15 minutes I ended the process and attempted to delete everything from "today" and it worked. I then, one by one, deleted everything for "all times" except "Browsing & Download History", and it all worked. Now all that is left is to delete this, but every time I try to delete it, and nothing else, Firefox stops responding.

How much history items do you have if the check that in the History Manager?
If there are too many then try to clear them month by month or in case you do not care to lose all history delete the places.sqlite file in the Firefox profile folder (Firefox will rebuild the bookmarks from the most recent JSON backup).
You can check for problems with the places.sqlite database file in the Firefox profile folder.
*http://kb.mozillazine.org/Bookmarks_history_and_toolbar_buttons_not_working_-_Firefox
*https://support.mozilla.org/kb/Bookmarks+not+saved#w_fix-the-bookmarks-file

Firefox crashes when not in use then I have to reboot my computer

Firefox crashes when not in use then I have to reboot the computer.
It will not come back on line and the only way out of this is to reboot the computer.

See:
*http://kb.mozillazine.org/Firefox_crashes
*https://support.mozilla.com/kb/Firefox+crashes
Your above posted system details show outdated plugin(s) with known security and stability risks that you should update.
* http://www.mozilla.com/plugincheck/
# Shockwave Flash 10.1 r102
# Java Plug-in 1.6.0_12 for Netscape Navigator (DLL Helper)
Update the [[Managing the Flash plugin|Flash]] plugin to the latest version.
*http://kb.mozillazine.org/Flash
*http://www.adobe.com/software/flash/about/
Update the [[Using the Java plugin with Firefox|Java]] plugin to the latest version.
*http://kb.mozillazine.org/Java
*http://www.oracle.com/technetwork/java/javase/downloads/index.html (Java Platform: Download JRE)

Firefox "stops responding messages" frequently + not sure what the plugins listed under updated ones as "unknown plugin" and " ?research "mean

hi there...
1) firefox has been giving me problems for several months where it just stops responding, meaning I click on one of the 5 tabs open then it gives me msg "firefox not responding", also happens when I am working with xsitepro website builder development software stops me from moving around the xsitepro program and firefox again says firefox not responding
Note: However, when firefox gives me "not responding msg" it responds after a few minutes and gives me access the tab i clicked on but then happens again when i try to click on another tab
2) went to a page that firefox listed plugins http://www.mozilla.com/en-US/plugincheck/ and there are several plugins listed that I do not know what it means below the ones it says it is updated, those are listed as " unknown plugin and ?research "
Not sure what does this mean as far as those plugins that are listed unknown and research. I did a search to see if I could find those plugins under addons but did not see them listed so are these plugins being used and installed on my firefox browswer and if so why are they hidden if they are installed or are they not installed at all
I did a copy and paste of the plugin check page so u can see what i see below:
The plugins listed below are up to date
Plugin Icon
Plugin Icon
Java(TM) Platform SE 6 U22
Next Generation Java Plug-in 1.6.0_22 for Mozilla browsers 1.6.0.22 Up to Date
Plugin Icon
Shockwave Flash
Shockwave Flash 10.1 r102 10.1.102.64 Up to Date
Plugin Icon
Java Deployment Toolkit 6.0.220.4
NPRuntime Script Plug-in Library for Java(TM) Deploy 1.6.0.22 Up to Date
Plugin Icon
Adobe Acrobat
Adobe PDF Plug-In For Firefox and Netscape "9.4.0" 9.4.0.195 Up to Date
Plugin Icon
Google Update
Google Update Unknown plugin Research
Plugin Icon
RealPlayer(tm) HTML5VideoShim Plug-In (32-bit)
RealPlayer(tm) HTML5VideoShim Plug-In Unknown plugin Research
Plugin Icon
RealJukebox NS Plugin
RealJukebox Netscape Plugin Unknown plugin Research
Plugin Icon
RealPlayer Version Plugin
6.0.12.775 Unknown plugin

Okay, that's a lot of information. I think the key part for support purposes is this:
''TheDrive [[#question-1057777|said]]''
<blockquote>
Just try yourself. Setup new profile and work a few days or weeks on any theme(s). Do not close tabs (at least ones, which you wanna explore once more). If your PC has 2-4Gb of RAM you will notice FF stopped to save session info after you will have a 50-100 tabs opened (you'll see sessionstore.js or session-backups\*.js script files reached 15-20-30MB long and stopped to change and it's LastMod date/time(s) are frozen) ... 
... I've noticed FF started to hang more and more and checked previous.js, recovery.bak, recovery.js was last modified on Apr, 14 but today is Apr, 16! I've lost one more hour trying to save tabs, even installed Session Manager, promised session saving on user demand but after a half hour of action against hanging FF, plugin showed me that I have NO ONE tab to save. I've managed to copy a few URLs to the text file before FF have completely fallen.</blockquote>
You're not the first person to report that the sessionstore.js or recovery.js file stopped updating with new activity. However, it's rare enough that I can't recall whether we have gotten to the bottom of it in a previous thread. I'll see whether I can search it up.
Meanwhile, someone might be able to come up with a way to watch for problems and extract some debug information, but I'm not personally familiar with such tools.

Firefox stops responding during Gmail and Google, why?

The last few weeks, Firefox 4.1.0, on my XP SP3 system, stops responding while I am sending Gmail, frequently, stopping the transmission. Today, for the first time, it stopped responding while I was searching on Google.
The LAST thing I want to do is go back to Microsoft's IE.
JMS

Well, clearing cookies and cache over and over does not work.
Also, Firefox stops working with many sites now and I am tired of closing it down every 3 minutes. So, my solution this morning was to import my bookmarks to Google Chrome and it worked. After using Firefox for many, many years, I will now be using Google Chrome.

My firefox stops responding and fades for about a half min almost every hour, OR MORE often

My firefox stops responding and fades for about a half min almost every hour, OR MORE often.
I am typing a message or information, the screen fades to about half bright. the curser freezes in place and no key responds.
The information bar at the top of the page says "firefox not responding" in about 30 seconds it restores and continues as tho nothing happens.

I might have discovered the solution without starting over with all your places and bookmarks.
Right after i installed 7.0.1 over a week ago,every 10-30 min When i would be watching videos online, it would freeze for 20-30 seconds. Firefox would say ( Not responding) both firefox and the plugin container process would be very large memory files. I tried to go back to Firefox 5.0. No avail it would still freeze.I tried to disable the plugin container . no good. I tried to adjust memory or cache or plugin settings in “about:config”.Nothing fixed it!
I finally discovered why my Firefox 7.01 was periodic hanging fix. It is something to do with some of your personal files. download this this add on and install it
https://addons.mozilla.org/en-US/firefox/addon/places-maintenance/
or you can Google "places maintenance Firefox"
After you install the add on, restart Firefox.go to "tools", then "add ons" and then click “extensions” tab ,then click' options" on the "places maintenance" entry. choose "ALL' or just "expire" and hit "execute", then wait until its done., restart Firefox. should be fine then and all my bookmarks, customizations ,settings, and history stays untouched!
After i did this my Firefox did not freeze once for over 3 days straight. Might not work for everyone. I already read that Mozilla is aware of the problem and are working on a fix it in the full version of 8( the 8 beta did not fix the problem for me) . But they said this is a good temporary fix at least,( might be permanent)
For me at least ,Firefox works fine in 7 now. perfect actually.And many people i saw on similar forums had similar problems.
Enjoy. Hope this helped

Ever since the most recent firefox update, every time I try to download anything firefox stops responding and will not do anything until I restart it. Can I revert back to a previous version, or is there a fix for it?

Every time I try to download anything firefox stops responding and will not do anything until I restart it. Can I revert back to a previous version, or is there a fix for it? When I restart firefox, then the download continues and all is well until I try to download something new (which I do quite often).

You may well find this article of interest and help in sorting out your problems: [[Installing a previous version of Firefox]] The article does contain a link for previous versions, but also points out other troubleshooting advice that may be more appropriate in some instances.
Another useful article is [[Basic Troubleshooting]]
I hope you sort out your problems either by downgrading or finding the cause of the problem.

Everytime I try to copy and paste, Firefox stops responding. Why?

Ever since I updated to the latest version of Firefox, if I try to copy and paste anything, Firefox stops responding. If I try to paste in another program such as Skype or AIM, that program stops responding too. What can I do to stop this?

It is possible that your anti-virus software is corrupting the downloaded files or otherwise interfering with downloading files by Firefox.
Try to disable the real-time (live) scanning of files in your anti-virus software temporarily to see if that makes downloading work.
See "Disable virus scanning in Firefox preferences - Windows"
* http://kb.mozillazine.org/Unable_to_save_or_download_files

Firefox stops responding while loading a specific website

Whenever I open firefox and immediately try to load the website http://www.espncricinfo.com/ , firefox stops responding. But if I try to load this site after browsing some other sites, the problem seems to resolve automatically. The website loads without any problem in Chrome or IE. I encountered this problem first with firefox 14 and with firefox 15, the problem persists.

Start Firefox in [https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Safe Mode] and check it again to see if one of the your extensions or hardware acceleration is the problem.
Do not click the Reset button. If the problem does not happen in Safe Mode see : [https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems ]
thanks again

Firefox stops responding almost everytime I use Facebook

When I scroll down on Facebook or try to go to a game, Firefox stops responding for 10 to 45 seconds and comes on again. When i start scrolling it stops responding again. this problem occurs quite regularly

See:
* http://kb.mozillazine.org/Firefox_crashes
* https://support.mozilla.com/kb/Firefox+crashes

Firefox stops responding after file download

After I download a file, Firefox stops responding and I have to wait for around 10 seconds before I can use it again.
This also happens when I'm using "Download them all"

That can be a problem with your AV software. Firefox let your default anti-virus program scan the file after the download has finished.
See http://kb.mozillazine.org/Unable_to_save_or_download_files

Firefox stops responding. I need to exit and restart or reboot the computer.

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