Firefox locks up frequently

Firefox locks up, which then locks up my whole computer for about 30-45 seconds when browsing websites. Sometimes it happens over and over and over, sometimes I can go a week without a problem. It's not a particular website...just random. I've tried with and without my addons. This is a brand new computer I built with Win7, no other issues.

I had the same problem. The solution: New mainboard. ALL mainboards using NVidia chipsets are likely to crash every hour or so because of crappy programmed drivers and hardware that's operating beyond save limits. I had all kinds of problems: USB-devices disconnecting frequently, system refusing to boot every now and then, all browsers crashing and all sorts of other neat problems. I just swapped the mainboard to an AMD-Chipset and now everything works fine. No crashes the last two months. I'm still using the same Windows7 installation, the same firefox and my old profile that previously crashed 10 times a day. I just swapped the mainboard, deinstalled the nvidia drivers, then installed new network and sound-drivers. That's it.

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Firefox locks up and I have to end task and restart firefox

firefox locks up and I cant click anywhere and get it to respond or close. the only way i can correct this it to control alt delete and then end task. then restart firefox. It happens frequently and does not matter if i am searching the net with google or reading articles on Drudge

Thanks for the report. This is a known issue in Firefox 4 beta on the Motorola Droid, and we don't have a solution yet. More details at: https://bugzilla.mozilla.org/show_bug.cgi?id=602252

Firefox locks up and crashes when trying to print a PDF from a website?

I am using Firefox ver 3.6.13 Every time I try to print a PDF displayed on a web site Firefox locks up. If I have several tabs open all of them are locked. I have to use taskmanager to end the program and restart Firefox. To print the PDF's I have to save them then open them using Adobe reader and print that way.
I can vie the PDF within Firefox and all is good. It only locks up when I try to print. Printing any non pdf page I have no problem.

On my x64 Win 7 system, practically the whole system was frozen. After the "Print" button was pressed the dialog stating "Preparing" came up, but I had to use Cntrl+Shift+Esc to open task manager. Then I had to use keyboard arrows to select firefox.exe and Alt+E to end task and the space bar to confirm. Mouse would move, but not "click" anything. If I attempted to click anything, I had to Cntrl+Alt+Del to get to where I could "Log Off" and that forced firefox to quit.
I found my problem was an addon with improper settings. Internet Download Manager addon was loading with firefox, but in IDM's actual options, the check box to integrate IDM with Mozilla was NOT checked and the Advanced integration with browsers was also unchecked. I had been having issues with downloading from sites that do not allow 3rd party software to download, and it was taking forever holding down the key that prevented IDM from intercepting the download, so I changed the option in IDM, and I could still right click and select "download with IDM" from the context menu. Re-selecting the check box next to Mozilla fixed the problem

Firefox stops responding frequently; there is no specific pattern to these episodes which might identify the problem.

Firefox stops responding frequently (2 or 3 times daily). There are no observable patterns to these episodes which might identify a specific task that causes the crash. It has been increasing in frequency for about a month now.
== Crash ID(s) ==
Can't say

I have the same problem. I have diabled all my add-on's with no effect.
I have found that it has nothing to do with mulitple tabs.
But have found that it mostly (maybe only) happens with pages that containes lots of links, banners and adverts.
Typhically news and other "free" pages which relies heavily on sponsorship and such.
Why, because the pages work fine for a few seconds while it still load all the crap.
Have tried the same pages with IE and they work fine.
Obviously IE has gained an advantage on Mozilla this time.
Hope Mozilla will come with a fix since I have enjoyed them for some years no.

I can no longer print email from my gmail account. when I select "print all" ling a dialog box opens trying to save file & firefox locks up

I can no longer print email from my gmail account. when I select "print all" link, a dialogue box opens attempting to save as file type .xls. another dialogue box says firefox is preparing file... meanwhile firefox locks up.

Is your printer selected?
Or are you printing to XLS?

Firefox locks file if a hyperlink is used from that file

If I used a hyperlink contain within a file, Firefox locks the file. Going to a different URL after does not release the file's lock.
The only way I've found is to close Firefox. I am then able to delete the file containing the hyperlink.

Start Firefox in [[Safe Mode|Safe Mode]] 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
Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) as a test to see if this helps.
*http://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/

Firefox locks up every time I try to print to PDF.

Every time I try to print to PDF, Firefox locks up and has to be shut down. I have the latest versions of Firefox ver 35, all Windows 7 updates, Adobe Acrobat Professional 9.5, etc. I tried refreshing Firefox and it did not help. I tried making a new profile and staring with it, and that did not help. I am stumped. Can you help get this fixed?

It may be that you can change the current pdf reader, or try to reinstall it. In order to change the default reader for PDF files (to not open PDF files with Firefox's internal PDF reader), follow these steps:
#Click the menu button [[Image:New Fx Menu]] and click Options.
#In the Options (Preferences for Linux and Mac) window, select the ''Applications'' panel.
#In the ''Search'' field, type ''PDF''. You should find ''Portable Document Format (PDF)''.
#On the right hand side you should find an ''Action'' column. Use that to select your favorite PDF reader. In order to view PDF files in Firefox, choose ''Preview in Firefox''.
Another troubleshooting step would be to try resetting the printing options in Firefox. [[Fix printing problems in Firefox]]
Did this fix your problems? Please report back to us!
Thank you.

Since the Version 20.0 update when starting firefox I have frequently got the error message "firefox is having trouble your windows and tabs" .

Since the version 20.0 update when starting firefox I have frequently got the error message "firefox is having trouble recovering your windows and tabs" This has not occurred with previous versions. If I click on the box "restore" and close firefox the problem reoccurs if I click close I lose the bookmark sidebar. I am so sick and tired of these frequent and buggy updates (every one since 17.0 have caused norton 360 to stop detecting tracking cookies for several weeks and or broken the norton toolbar) that I will uninstall firefox and switch to another browser if this does not change.

See:
*http://kb.mozillazine.org/Firefox_crashes
*https://support.mozilla.org/kb/Firefox+crashes
If you have submitted crash reports then please post the IDs of one or more crash reports that have this format:
*bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
You can find the IDs of the submitted crash reports on the about:crashes page.
*You can open the about:crashes page via the location bar, like you open a website.
See:
*http://kb.mozillazine.org/Mozilla_Crash_Reporter
*https://support.mozilla.org/kb/Mozilla+Crash+Reporter

Firefox locks up on the Onion AV Club website (possibly plugin container problem).

Over the last couple of weeks when I try to look at a page on the Onion AV Club website, Firefox locks up completely. The page will open up but won't finish loading, the hourglass stays on the screen, and the page will not scroll. I find there is no solution for this but to close Firefox altogether. I have no problem accessing AV Club pages with Google Chrome. I suspect the problem may have to do with plugin container, but I don't really know what the cause is.

You can run Java in Firefox.exe instead of plugin-container.exe, but I'm not sure that actually would be better than where you are now.
(1) In a new tab, type or paste '''about:config''' in the address bar and press Enter. Click the button promising to be careful.
(2) In the filter box, type or paste '''java''' and pause while the list is filtered
(3) If '''dom.ipc.plugins.java.enabled''' is true (bolded), right-click it and choose Reset (or double-click it to toggle).
If that value already is false, you might be having a problem with another common plugin such as Flash.

Firefox locks up when I try to play Pirates Rule on Facebook

Every time I try to play my favorite game "Pirates Rule" on Facebook, Firefox locks up on me and I have to restart my PC to get it to stop. I am not able to close Firefox at all once I try to load Pirates. Any idea for a fix?
== URL of affected sites ==
http://apps.facebook.com/piratesrule/index.php?nav=mainmenu_button_home

'''Hangs Loading first firefox window'''
1. Right-click the shortcut icon you use to start Firefox.
2. Select Properties.
3. Select the Compatibility icon.
4. Select Run this program in compatibility mode.
5. In the drop-down for compatibility mode, select Windows 98/Windows ME.
6. Click OK.
7. Restart Firefox to see if the hanging has gone away.
'''Hang loading every Firefox window'''
The SwitchProxy Tool extension checks for updates each time a new window is opened.This is a known issue. If you use SwitchProxy Tool, you can disable it to see if hanging is prevented:
1. At the top of the Firefox windowOn the menu bar, click the Tools menu and then select Add-ons. The Add-ons dialog appears.
2. Select the Extensions panel. The list of installed extensions is displayed.
3. Select SwitchProxy Tool.
4. Click Disable.
5. From the menu at the top of the Firefox windowbar, select FileFirefox and then select the ExitQuit FirefoxQuit menu item.
6. Restart Firefox. Open several new windows to see if Firefox no longer hangs.
If none of these helps, see [https://support.mozilla.com/en-US/kb/Firefox+hangs Firefox Hangs]

Firefox locks up when in Facebook, it has just started doing this

Firefox locks up when in Facebook, it has only just started doing this, I get (Firefox not responding) at top of page. I have tried it in IE and have no problem. I log in using Lastpass.

Start Firefox in [[Safe Mode|Safe Mode]] to check if one of the extensions (Firefox/Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/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
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"
Note that your System Details List shows that you have a user.js file in the profile folder to initialize some prefs on each start of Firefox.
The user.js file is only present if you or other software has created it, so normally it wouldn't be there.
you can check its content with a plain text editor if you didn't create this file yourself.
The user.js file is read each time you start Firefox and initializes preferences to the value specified in this file, so preferences set via user.js can only be changed temporarily for the current session.
*http://kb.mozillazine.org/Preferences_not_saved

Firefox locks up regularly since ver 3.5, especially with more that one tab open.

firefox locks up regularly since ver 3.5, especially with more that ona tab open. navigating thru the www.nokia.be website is a good example, especially when looking for different models and comparing them. firefox needs to be closed then via windows tasks/ close application.
I tried to reinstal firefox 4.0.1, without any add-ons but theproblem remains, it even seems worse!
in Windows explorer this problem never happens!!

try out this code its working...
<?xml version="1.0" encoding="utf-8"?>
<mx:Application
xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"><mx:VBox
width="100%" height="100%" >
<mx:DataGrid width="100%" height="100%" dataProvider="{dataSet}" >
<mx:columns>
<mx:DataGridColumn>
<mx:headerRenderer>
<mx:Component>
<mx:CheckBox />
</mx:Component>
</mx:headerRenderer>
<mx:itemRenderer>
<mx:Component>
<mx:Panel width="100%" >
<mx:ComboBox />
<mx:TextArea />
</mx:Panel>
</mx:Component>
</mx:itemRenderer>
</mx:DataGridColumn>
</mx:columns>
</mx:DataGrid>
</mx:VBox><mx:Script><![CDATA[
import mx.collections.ArrayCollection;[
Bindable]
public var dataSet:ArrayCollection = new ArrayCollection([{Month:
"Errors", Income:1500, Profit:90},{Month:
"Work In Progress", Income:1200, Profit:1000,percent:100 },{Month:
"Pending on Trustee",Income:1200, Profit:1000,percent:125},{Month:
"Pending on Notary", Income:750, Profit:1500,percent:175},{Month:
"Pending on Signature", Income:860,Profit:900,percent:75},{Month:
"Pending on County", Income:500,Profit:750,percent:175}]);
]]>
</mx:Script></mx:Application>

Firefox locks up / plugin container error appears -- what to do?

Firefox locks up. "Plugin Container has to stop" error appears. Tried reloading FF (3.6), no change

Make sure that your firewall doesn't block the plugin-container process.
See http://kb.mozillazine.org/Plugin-container_and_out-of-process_plugins

Firefox locks up on demand.five.tv home page

Firefox locks up on demand.five.tv home page as it tries to download/play something. Task manager shows two sites open.
== URL of affected sites ==
http://demand.five.tv

Refer to this help article on [https://support.mozilla.com/en-US/kb/How%20to%20set%20the%20home%20page?s=home+page&r=0&as=s How to Set up the Home Page].

FireFox Locking up

Firefox locked up. "Force quit" was not available and Quit didn't work last couple of times.
Other apps were able to shut down normally but I had to hold the power button down to shut off and restart the machine.
any ideas?
best, M/

I've noticed a similar problem, which has started occurring only recently. If I'm dictating into Firefox 8 using Dragon NaturallySpeaking, whether it be into the search bar or into a Gmail compose e-mail window, Firefox can lock up without warning. The only way I've found to recover from the problem is to forcefully close Firefox using the Windows task manager.
EDIT: this error message titled "dd10edit" might be relevant - "COM returned an unexpected error code: Details are HOOKERR_CONNOTINJECT"

Firefox locks up frequently

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