Firefox stops responding when opening dialog box

I recently had a problem with redirecting Google results to a variety of random websites. I ended up running ComboFix and that problem went away. Since then however, I have noticed that I cannot open any dialog boxes through Firefox (file upload, save as, download, options). Whenever I try the browser freezes and when i try to do anything it says it is not responding. I then close the program and sometimes I have to end the process in the task manager in order to open Firefox again.

Do a clean reinstall.
Download a fresh Firefox copy and save the file to the desktop.
* Firefox 5.0.x: http://www.mozilla.com/en-US/firefox/all.html
* Uninstall your current Firefox version.
* Do not remove personal data when you uninstall the current version.
Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.
* It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.
Your bookmarks and other profile data are stored elsewhere in the Firefox Profile Folder and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.
* http://kb.mozillazine.org/Profile_folder_-_Firefox
* http://kb.mozillazine.org/Profile_backup

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Firefox stops responding when I try to play words with friends, eventually a box pops up about script

First, let me say I have the latest version of Firefox and Adobe Flash Player and Java Script. When I click to play Words With Friends (on pc) my computer starts racing and sounds loud and every thing freezes. If I try to click on slider or anything else, it says Mozilla Firefox (not responding), then it takes several minutes and a box pops up that says something about a script, do I want to continue or ?(I can't remember), after I click continue, I can play the game, but, at any given time Firefox will stop responding again!! A box also pops up from AVG saying that Firefox is using too much memory. Just an aside, I can play Scrabble on Facebook without any problems whatsoever. Please help, it is driving me crazy. Thanks

Sounds that you are missing the plugin that is used to play those videos embedded in Firefox. 
Your system details list doesn't show any media player plugin, so you will either have to check if the plugin(s) are installed, but disabled or install missing plugins.
*https://support.mozilla.org/kb/Popular+plugins
You may need the new WMP plugin (np-mswmp.dll) because Flash always uses a dedicated player to play the videos and would never offer to save videos directly unless an extension is used.
* https://support.mozilla.org/kb/Using+the+Windows+Media+Player+plugin+with+Firefox
* http://kb.mozillazine.org/Windows_Media_Player#Missing_plugin

Firefox stops responding when starting

Basically, Firefox has worked fine for 3 months on this computer, no problems. I haven't installed any new add-ons since I set it up initially. I closed out of my session, went and had lunch, came back and now within 5-10 seconds after starting up Firefox, it freezes. I deleted my cache and nothing changed. I can't use the profile manager because you have to be in Firefox to do so, and it immediately stops responding.
I did a complete reinstall after wiping everything that I could, and it worked for one full session. When I closed it and opened it again, same thing as before. Only thing different from today from yesterday was a single game installation (Sim City 4 what whaaat), otherwise there's been no change to my computer's files.
Any help?

Are you getting any error message or no
When Firefox hangs, it stops responding to your clicks and keystrokes and doesn't seem to be doing anything. Also, a "(Not Responding)" label is displayed in the title bar and the mouse becomes a spinning wait cursor when it's over the Firefox window. This article gives you solutions to Firefox hangs depending on when they happen
https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding?esab=a&s=stops+responding&r=0&as=s#os=win7&browser=fx17

Firefox stops responding when scroling down on youtube.

when i go to youtube and don't scroll down everthings find but if do there a 60% chance that it will stop responding and crash. and i have uninstalled and refreshed firefox and no changes am getting to the point of leaving firefox if i can't fix it

'''Try Firefox Safe Mode''' to see if the problem goes away. [[Troubleshoot Firefox issues using Safe Mode|Firefox Safe Mode]] is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes).
'''If Firefox is open,''' you can restart in Firefox Safe Mode from the Help menu:
* Click the menu button [[Image:New Fx Menu]], click Help [[Image:Help-29]] and select ''Restart with Add-ons Disabled''.
'''If Firefox is not running,''' you can start Firefox in Safe Mode as follows:
* On Windows: Hold the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* On Mac: Hold the '''option''' key while starting Firefox.
* On Linux: Quit Firefox, go to your Terminal and run ''firefox -safe-mode'' (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
When the Firefox Safe Mode window appears, select "Start in Safe Mode".
;[[Image:SafeMode-Fx35]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, theme, or hardware acceleration. Please follow the steps in the [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] article to find the cause.
''To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
When you figure out what's causing your issues, please let us know. It might help others with the same problem.

Firefox stop responding when you click in the window.

If you click anywhere in the content window the program stops responding. Title bar does not display "not responding". Can access menu function sometimes, but most of time program hang as soon as you click in the window.
This problem started on 3/2/13 when the program was updated.

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information.
Note: ''This will cause you to lose any Extensions, Open websites, and some Preferences.''
To Reset Firefox do the following:
#Go to Firefox > Help > Troubleshooting Information.
#Click the "Reset Firefox" button.
#Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
#Firefox will open with all factory defaults applied.
Further information can be found in the [[Reset Firefox – easily fix most problems]] article.
Did this fix your problems? Please report back to us!

IBook stops responding when opening Safari and then some....

So my iBook is a 2004 model...it's hard to say because I got it from a friend who passed away last year. I use my own sign in name that's not the administrator. The problem started with my iTunes where I would start up the program..it would think a bit after the program opened..then show me the Beach Ball and the program would stop responding. I had it fixed for a short period of time after trying something I found on these discussion boards. However, about 3 weeks ago it stopped working again so I transferred the music to my G5 Desktop...I don't need to have all the music on my laptop..no biggie.
So today...Sept. 17th 2007 I installed a Security Update for my iBook along with an iTunes upgrade and a Quicktime Upgrade. I had been using the internet the night before and all morning without a single problem. After I install these updates I restart the computer. When I go to open the internet..wireless I might add...which has never been a problem because I've never used a direct link for the internet on this computer...it starts to load the apple start page...then fails to continue. I move the mouse and go to click the refresh and it gives me that lovely Beach Ball. I right-click the Safari icon in the dock and it tells me it's not responding. I force quit and restart the computer again...this time when it starts up my Desktop has been reset to the solid blue wallpaper. Still the same problem with Safari. I shut it down and let it rest for the afternoon. When I get home I pull it out of my bag and try one more time....I got my desktop image back...same problem with Safari though. I run the Disk Utility "Repair Disk Permissions" and it gives me this error about a minute into working....
"Disk Utility internal error: Disk Utility has lost its connection with the Disk Management Tool and cannot continue. Please quit and relaunch Disk Utility."
I've done this several times and continue to get the same error. I also tried the Verify Disk Permissions and got the same error. It's as if my computer gives up on running programs after about a minute (probably less) and causes all of my programs to stop responding without crashing the entire computer.
The warrantee is surely expired and I don't have the original start up disks the computer came with because it's a hand-me-down. So....if someone could help with ANY advise that would be great. Sorry about the length...
-Jared

Hi Jared,
I can help you get new system disks.
If you contact Apple in your country you can request a new set of basic system disks for your machine (I lost mine at one point as well...)
Once, you've done this I'd first run the Apple hardware test, you may also want to try resetting the PRAM
1.Shut down the computer.
2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
3. Turn on the computer.
4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
6. Release the keys.
Regards,
Pete.
Message was edited by: Peter Miller

Firefox stops responding when trying to "save page" or "save image"

Windows 7 64 bit and Firefox 28. When trying to 'Save Page' or 'Save Image' the save dialogue window is nearly blank, then info bar shows 'not responding'. I have tried all the tips in the support pages. Resetting Firefox, Starting Firefox in 'Safe Mode'. Upgrading graphics driver to latest version. Turning off 'Hardware Acceleration' in options. Nothing resolves the problem. This issue has only recently started, the last time I tried saving an image it worked fine, certainly prior to Microsoft's most recent 'upgrade Tuesday'.
Edit:
Checked the save dates of the last images I successfully saved from within Firefox and compared them to my windows update log. The Microsoft March 'Update Tuesday' was installed on March 14th. My last successfully saved Firefox images were saved the following day on March 15th. Thus it is unlikely that the Firefox saving issue is a result of a Windows Update corruption. So the question is what changes have Mozilla made to Firefox between 15th and 24th March 2014 ???

I understand that finding a root cause is ideal, and I would be happy to further investigate this with you.
Since it is still happening in Safe Mode [https://support.mozilla.org/en-US/kb/troubleshoot-issues-with-plugins-fix-problems please try to troubleshoot the plugins and extensions]
The other route is to troubleshoot the downloads folder and antivirus to make sure the downloading of the image is not having an issue either. [http://mzl.la/LJ0h2w]
In the meantime there is an add on that enables this [https://addons.mozilla.org/en-US/firefox/addon/save-images/ Save Images]
Please post back with your results, there have been other reports, but no issue filed yet.

Firefox stops responding when started up

As soon as I start Firefox the program stops responding and I cannot do anything but end the process.

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

Firefox stops responding when trying to access facebook.

As of Sunday I cannot access Facebook. When I type in facebook in to the address bar Mozilla circle spins and then stops and eventually goes to "not responding." Every other website page I try to load is perfectly fine. And facebook page was fine as of Saturday afternoon. I came home on Sunday and it's not working now. Can anyone help? I have downloaded and run ccleaner, cleared cookies and cache with Mozilla. Not sure what else to do.

Hello,
'''Try Firefox Safe Mode''' to see if the problem goes away. [[Troubleshoot Firefox issues using Safe Mode|Firefox Safe Mode]] is a troubleshooting mode that turns off some settings and disables most add-ons (extensions and themes).
''(If you're using an added theme, switch to the Default theme.)''
If Firefox is open, you can restart in Firefox Safe Mode from the Help menu by clicking on the '''Restart with Add-ons Disabled...''' menu item: 
[[Image:FirefoxSafeMode|width=520]] 
If Firefox is not running, you can start Firefox in Safe Mode as follows:
* On Windows: Hold the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* On Mac: Hold the '''option''' key while starting Firefox.
* On Linux: Quit Firefox, go to your Terminal and run ''firefox -safe-mode'' (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
''Once you get the pop-up, just select "'Start in Safe Mode"''
[[Image:Safe Mode Fx 15 - Win]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] article to find the cause.
''To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
When you figure out what's causing your issues, please let us know. It might help others with the same problem.
Thank you.

Firefox stops responding when I try to clear my cookies-or it just does nothing.

Yesterday, I tried to clear my cookies-for security-I clicked on the 'clear' button and then I got the spinner thing. It then went to 'firefox is not responding'. One time-yesterday-when I clicked clear-it returned to the original 'clear cookies' screen-but I checked. It hadn't cleared anything. I was also getting the 'bad script' thing. I ran my anti-virus. Things were fine.

Didn't work. My cookies still haven't been cleared and I got a 'not responding' message when I tried to return to a prior screen.

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.

Firefox stops responding when I click on a link

my daughter is homeschooled and when she is doing her schoolwork she sometimes has to click on a link and when she does, it starts to load and then freezes, I can go to the start menu or x out but nowhere else on the page, when I check the task manager, it says firefox is not responding

Hello,
'''Try Firefox Safe Mode''' to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.
''(If you're not using it, switch to the Default theme.)''
* On Windows you can open Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* On Mac you can open Firefox 4.0+ in Safe Mode by holding the '''option''' key while starting Firefox.
* On Linux you can open Firefox 4.0+ in Safe Mode by quitting Firefox and then going to your Terminal and running: firefox -safe-mode (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
* Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
[[Image:FirefoxSafeMode|width=520]]
''Once you get the pop-up, just select "'Start in Safe Mode"''
[[Image:Safe Mode Fx 15 - Win]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshooting extensions and themes]] article for that.
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
''When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.''
Thank you.

Mail stops responding when opening messages, replying, etc...

For the last few days I've been having an excessively annoying problem with Mail. Almost every time I select a message to view it hangs and goes unresponsive until I force quit it, normally I'd think it was because the message was large and it was just taking a long time to load it, but it happens even with completely text-based emails with only a few lines in them. It also happens when I try to reply to emails sometimes. The Mail app support folder is only 145MB, and I've tried restarting my computer and it still doesn't work.
Mail also doesn't seem to be hogging memory until it goes unresponsive.

Verify/repair the startup disk (not just permissions), as described here:
The Repair functions of Disk Utility: what's it all about?
Have you installed Safari 3 Beta ? If so, uninstall it and see whether that makes a difference.
Do you have any Mail plug-ins or system utilities that could interfere with Mail? In the Finder, go to each of the following folders (if they exist). What do you see there?
/Library/InputManagers/
/Library/Mail/Bundles/
~/Library/InputManagers/
~/Library/Mail/Bundles/
Note: For those not familiarized with the ~/ notation, it refers to the user’s home folder. You can easily locate any of the folders referred to in this post by copying the folder path here, doing Go > Go to Folder in the Finder, and pasting the folder path there.

AE stops responding when opening project, gets stuck at 58%

I am trying to open a rather complex AE project, with Dynamic link to Premiere. I have tried importing the project into a new project and still it doesn't work. Is there anything else that I can try.
Thanks.

We need to know a lot more to help you. Please provide answers to the questions listed here:
http://forums.adobe.com/thread/961743

When two or more tabs are opened after this when I click on another tab which is opened then firfox stopped responding and open automatically all the tabs in diffreent windows

<blockquote>Locking duplicate thread. 
Please continue here: [[/questions/873886]]</blockquote>
when two or more tabs are opened after this when I click on another tab which is opened then firefox stopped responding and open automatically all the tabs in different windows

If it works in a new window then you can drags tabs from the not working window to that new window.
You can also try to close the tabs via Ctrl+W and restore the closed tabs via Shift+Ctrl+T

Firefox stops responding when opening dialog box

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