Firefox is very slow to respond when opening and nearly always stops responding altogether even refusing to react to Task Manager "End Program@ command. The "not responding@ error message also comes up during navigation on line.

Firefox is very slow to respond when opening and nearly always stops responding altogether, even refusing to react to the Task Manager "End Program" command. The "not responding" error message also comes up during navigation on line. Several attempt have to be made to get on line. A loss of stability seems to be endemic at the moment.

Try following the instructions here: [[Firefox hangs]]

Similar Messages

Firefox is very slow, doesn't look right and all history and bookmarks gone

This happened just after I installed a proprietary software that I needed for work.
When I launched Firefox afterwards, I realized that all of my bookmarks and history was gone. The websites were loading very slow. My Firefox sync configuration settings were gone.
Also, when I search Google and put the cursor over the links that appear, the cursor usually turns to a hand symbol. Now it turns to a text cursor (like an I). The links are usually colored blue, but now they are colored black.
I'm using Chromium instead of Firefox now, and it appears to be working OK.
Tried disabling all the addons. Didn't work. Then uninstalled and re-installed Firefox. No luck. Uninstalled Firefox, deleted all folders containing "firefox" as part of the name in "/usr/lib", and re-installed Firefox. Didn't work.
Maybe the proprietary software that I installed altered the user permissions to some folder so Firefox is not able so access them? I don't know. If you have any ideas let me know.
I would really like to get Firefox working properly again, because I'm so used to it, and use addons like Zotero. Also, I have Windows in dual boot, and I have Firefox running there, and everything I do there was synced to Firefox in Ubuntu. But not anymore :(.
Thanks.

This happened just after I installed a proprietary software that I needed for work.
When I launched Firefox afterwards, I realized that all of my bookmarks and history was gone. The websites were loading very slow. My Firefox sync configuration settings were gone.
Also, when I search Google and put the cursor over the links that appear, the cursor usually turns to a hand symbol. Now it turns to a text cursor (like an I). The links are usually colored blue, but now they are colored black.
I'm using Chromium instead of Firefox now, and it appears to be working OK.
Tried disabling all the addons. Didn't work. Then uninstalled and re-installed Firefox. No luck. Uninstalled Firefox, deleted all folders containing "firefox" as part of the name in "/usr/lib", and re-installed Firefox. Didn't work.
Maybe the proprietary software that I installed altered the user permissions to some folder so Firefox is not able so access them? I don't know. If you have any ideas let me know.
I would really like to get Firefox working properly again, because I'm so used to it, and use addons like Zotero. Also, I have Windows in dual boot, and I have Firefox running there, and everything I do there was synced to Firefox in Ubuntu. But not anymore :(.
Thanks.

After updating firefox it crashed . Its froze when opened and crashes asap when opened .

When i open it a blue screen comes up and it then shows as firefox as frozen and not responding . It wont stay open only a few seconds before crashing again with the mozilla crash reporter showing . I can only quit firefox .

Create a new profile as a test to check if your current profile is causing the problems.
See "Basic Troubleshooting: Make a new profile":
* https://support.mozilla.com/kb/Basic+Troubleshooting#w_8-make-a-new-profile
There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins" in case there are still problems.
If that new profile works then you can transfer some files from the old profile to that new profile, but be careful not to copy corrupted files.
See:
* http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox
See:
* http://kb.mozillazine.org/Firefox_crashes
* https://support.mozilla.com/kb/Firefox+crashes

HT201413 my ipad stopped working and will not start error message 1601 comes up when i try to restore any one have advice on what to do

my ipad 4 stopped working, it will not switch on, charge nor will it allow me to restore, the errror message 1601 comes up when trying to restore does anyone know how to help as i am not near an apple store to get help

You have already seen this for Error 9
This error occurs when the device unexpectedly loses its USB connection with iTunes. This can occur if the device is manually disconnected during the restore process. This issue can be resolved by performing USB troubleshooting, using a different USB dock-connector cable, trying another USB port, restoring on another computer, or by eliminating conflicts from third-party security software.
For a new machine Error 11 !
Check Hosts file if it is diverting iTunes away from Apple servers.

Firefox responds generally very slow but fast when moving the mouse

Firefox respons very slow but speeds up when I move the mouse over the page. Keeping the mouse moving results in normal speed.
?? Peter

Weird thing is that if I revert back to FF15, everything works with HA enabled and full bookmark menu.
but its a no go with FF16
PEACE

My macbook pro is running very slow with some strange mouse and window movements. The trackpad is very unresponsive and when responding the cursor moves on its own and/or very erratically. When on safari the window suddenly zooms in or highlights words.

My macbook pro is running very slow with some strange mouse and window movements. The trackpad is very unresponsive and when responding the cursor moves on its own and/or very erratically. When on safari the window suddenly zooms in or highlights words and looks them up via dictionary. I currently have a wireless mouse connected and I am still having the same problems.
I fee like I may have a virus or my laptop is perhaps being accessed remotely. All of the sharing options are unchecked.
HELP PLEASE
Very worried!!

Try these in order testing your system after each to see if it's back to normal:
1. a. Resetting your Mac's PRAM and NVRAM
    b. Intel-based Macs: Resetting the System Management Controller (SMC)
2. Restart the computer in Safe Mode, then restart again, normally. If this doesn't help, then:
     Boot to the Recovery HD: Restart the computer and after the chime press and hold down the
     COMMAND and R keys until the Utilities menu screen appears. Alternatively, restart the computer and
     after the chime press and hold down the OPTION key until the boot manager screen appears.
     Select the Recovery HD and click on the downward pointing arrow button.
3. Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the Utilities menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
     Reinstall the 10.9.2 update: OS X Mavericks 10.9.2 Update (Combo).
4. Reinstall Lion/Mountain Lion, Mavericks: Reboot from the Recovery HD. Select Reinstall Lion/Mountain Lion, Mavericks from the Utilities menu, and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
Reinstall the 10.9.2 update: OS X Mavericks 10.9.2 Update (Combo).

Firefox 4.0.1 is constantly freezing, having to reboot constantly, and not responding to key strokes, and very slow responses to keys strokes and to change sites

firefox 4.0.1 is constantly freezing, having to reboot constantly, and not responding to key strokes, and very slow responses to keys strokes and to change sites. Firefox 3. (the previous incarnation of firefox) did not have such problems - this has started since "upgrading to 4.0.1 - I want to change back to the previous Firefox since this is a serious problem - need specific instructions on how to go back to the old Firefox

Do you have multiple keyboard layouts installed?
It is possible that you have switched the keyboard layout by accident.
* http://support.microsoft.com/kb/258824 - How to change your keyboard layout
Windows remembers the keyboard layout setting per application and you may have changed the keyboard layout by accident via a keyboard shortcut.
* http://windows.microsoft.com/en-US/windows7/The-Language-bar-overview The Language bar (overview)
* Make sure that you have the Language bar visible on the Windows Taskbar
* You can do that via the right-click context menu of the Taskbar: Toolbars > Language Bar
* Check the keyboard language (keyboard layout) setting for the application that has focus via the icon on the Language bar
* You need to do that while Firefox has focus because Windows remembers the keyboard layout setting per application

Firefox browser very slow signing in and moving from one website to another

firefox browser very slow signing in and opening different websites.
== Operating system ==
Windows xp

Hello BJ.
This kind of issues are, unfortunately, more common and the we'd like. Thankfully, 99% of the cases are very easy to solve. However, you do need to diagnose what your exact problem is. Do this:
#run Firefox in [http://support.mozilla.com/en-US/kb/Safe+Mode safe-mode] to disable all extensions, themes and plugins. If this fixes your issues, be them with RAM or CPU usage, then you know it's a problem with plugins, themes or extensions. Proceed to number 2. If safe-mode doesn't fix the issues, then read bellow, after this list;
#update all extensions, themes and plugins in your Firefox. If this doesn't solve the issues, proceed to the following number;
#disable all extensions, themes and plugins in your Firefox (not running safe-mode). Being certain that, as in safe-mode, the problems you're having have gone away, enable one plugin at a time. You should be certain that you WANT that plugin to be enabled, so keep your overall number of plugins as low as possible. When you encounter the problems, you know you've found a problematic plugin, so disable it for good. Keep enabling all plugins (except problematic ones) until you've gone through them all.
#enable one extension at a time. Again, be certain that you WANT that extension to be enabled, so keep your overall number of extensions as low as possible. Also, try the theme you want to have installed so see if that is what's causing the problem. When you encounter the problems, you know you've found a problematic extension/theme, so disable it for good. Keep enabling all your extensions (except problematic ones) until you've gone through them all;
#you're done! You've fixed your problems with problematic add-ons. If you want to keep using those problematic add-ons, please contant their author for support.
Ok, if disabling all extensions and plugins through safe-mode didn't work to bring Firefox's CPU and RAM usage to good levels, then you have different issue. The most likely scenario is that you have a third party software running on your computer that is messing with Firefox. Do as follows:
#try reinstally Firefox. No data will be lost. You can get the latest version for free at [http://www.getfirefox.com/ getfirefox.com]. If that doesn't fix the problem, proceed;
#do a virus/malware check on your computer. If this doesn't fix it, proceed;
#disable all software running in the background that you don't want to have running in the background (in windows, this is done by pressing WINDOWS+R in your keyboard, typing "msconfig" (without the commas) and pressing enter. Now, under the "Startup" tab, you can uncheck the software you don't want, and reboot your system for changes to take effect. If you're unsure of what software you want running, ask someone with more experience). If this doesn't fix your issues with Firefox, proceed;
#check your firewall/antivirus/security suite for enabled functions/features that you don't want and/or may be conflicting with Firefox. You'll find that these features are most likely tied to Internet Security features, such as link scanners or URL checkers and the like. If you're not sure they are conflicting with Firefox, simply try to disable them to see whether or not that's true. As long as you don't browse the web with your antivirus completely off and your firewall completely turned off, there should be no problems. If this doesn't solve the issues, proceed to the following number;
#check your operating system security options, mainly advanced options that are not configured by default. While it's very unlikely that this may be the cause of the problem (after all, it's the last item on the list), it's remotely possible. If this doesn't work, proceed to the following point;
#clean up your OS registry, using appropriate software. If this doesn't do it, I'm out of ideas. Except make sure you've followed my instructions correctly.

When I try to open images I am getting this message: "The file "image.jpg" couldn't be opened because you don't have permission to view it." "Which I've tried - but it's not responding, plus its with all images now. Can anyone help?

When I try to open images I am getting this message: "The file “image.jpg” couldn’t be opened because you don’t have permission to view it." "Which I've tried - but it's not responding, plus its with all images now. Can anyone help?

Back up all data.
Triple-click anywhere in the line below on this page to select it:
~/Library/Containers/com.apple.iBooksX
Right-click or control-click the line and select
Services ▹ Reveal in Finder (or just Reveal)
from the contextual menu.* A folder should open with an item selected. Quit the application if it's running. Move the selected item to the Trash. Relaunch the application and test.
*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select
Go ▹ Go to Folder...
from the menu bar and paste into the box that opens by pressing command-V. You won't see what you pasted because a line break is included. Press return.

Firefox 13 very slow compared to IE or Chrome despite Fastestfox

Firefox is very slow compared to IE 8 or Google Chrome despite Fastestfox plugin and the server connection is interrupted all the time when I try to load sites, and I have to re-load again and again (this also happens wehn I clicked on HELP)... I also could not restart in safemode as I didn't find it... Please help, as I would like to use Firefox...

I noticed firefox 13.0.1 is very slow after gradual use. Even my computer is slowing down when using it.. All this nonsense about the addon or extension seems like Bull...
Im thinking of using version 3.6.28 which was wayyyy faster. Mozilla need to make more quality products.
I recommend either going back to Internet Explorer or using Firefox 3.6.28, i really hope mozilla's next browser ver 14 is way faster...

Latest update has my safari/firefox running very slow

I did the latest software update Monday night, and now my safari and firefox are very slow to load. I have raised the memory storage to 100 MB, tried the proxy thing (didn't work, so I put it back to where it was), tried clearing the cache, and I don't know what to do. I have a router with specific numbers, so I can't change that on the TCP thing.
Please help.

hawknelson wrote:
I added the DNS numbers and safari is working, but what about my slow Firefox?
Your system uses DNS for its internet connection, so if it helps Safari it should have the same effect on Firefox. If Firefox is having problems when Safari is not, that's a problem specific to that program and you might want to pursue that on the forums dedicated to its support.

Firefox crashes when opening and the crash report I get is Firefox 3.6.3 Crash Report [@ strlen | nspr4.dll@0x15f9f ].

== Issue
==
Firefox is crashing or closing unexpectedly
== Description
==
Firefox 3.6.3 crashes when opening and the Crash Report [[@ strlen nspr4.dll@0x15f9f ]. It was working perfectly fine and the last three days, I am having difficulty in opening firefox. It crashes with the above crash report every time I open. I came across the bad image error and did a clean reinstall multiple times and that did not help. I have firebug and firecookies as an addon.
== Crash ID(s)
==
bp-5972b384-791f-4667-b3cb-051812100504
== Firefox version
==
3.6
== Operating system
==
windows XP
== User Agent
==
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/532.5 (KHTML, like Gecko) Chrome/4.1.249.1064 Safari/532.5
== Plugins installed
==
firebug and firecookie

Usually doesn't immediately crash, although that happens also. Usually hangs, then crashes.
Addons are WHY I use Firefox when it works. I am NOT on the bleeding edge any longer. I could go back to boring, boring, Chrome.

HT4641 after modifying a document in Pages I found that there are horizontal lines across every line break when opened and saved it in DropBox. Does anyone know why?

after modifying a document in Pages ON MY IPAD AIR I found that there are horizontal lines across every line break when opened and saved it in DropBox. Does anyone know why?

Thanks a lot for your swift response. And sorry if it was a bit too hectic to go through my detailed query (which I did because it was misunderstood when I asked previously). As I've mentioned above, I was informed that updating to 5.0.1 would '''require''' me to '''delete''' the current version and then install the new one. And doing so will involve losing all my bookmarks. I guess I should have been more specific and detailed there. By losing, I didn't mean losing them forever. I'm aware that they're secured in some place and deleting and installing the software doesn't harm its existence. What I meant that if I install the new version, I'd have to delete the old one. And after installing the new version, I'd have to transfer them (bookmarks) back from wherever they are. Get it? When it updated from 3.6.9 to 3.6.13, and from 3.6.13 to 3.6.18, I didn't need to follow that process. They were already present on their own.
BTW, I'm having no problems with 3.6.18 but after learning about the existence of version 5.0.1, I'm a bit too eager to lay my hands over it.
Thanks for your help; hope this wasn't extremely long.

Saving after editing in elements 8 - this is painfully slow, including waiting through the "not responding" message, though after quick editing in organiser saving is very quick - what is the problem?

saving after editing in elements 8 - this is painfully slow, including waiting through the "not responding" message, though after quick editing in organiser saving is very quick - what is the problem?

None of my pictures that I uploaded into iPhoto are in my Finder under Pictures. Should I copy and paste my folders from iPhoto into here, in case something happens to my iPhoto program (in addition to backing them up onto an external hard drive like I already do)?
No, that's just wasting space. A back up needs to be on a different disk.
Your photos are within the iPhoto Library.

Tweak Firefox to very slow connection

Como configurar(no about:config) o meu firefox para conexões muito lentas?
Algo em torno de 32KBps?
Máximo de conexões? Pipeling? Requisições máximas, etc...
Obrigado desde já.
How to tweak(in about:config) Firefox to very slow connection?
Like 32KBps.
maxrequests? Pipeling(true or false)? MaxConn?
Thanks!

Olá sistematico,
Postei uma resposta [https://support.mozilla.org/pt-BR/questions/960088 neste outro tópico].
Aguardamos sua resposta nele, para que possamos lhe ajudar. =)
Abraços,
- Ralph

Firefox is very slow to respond when opening and nearly always stops responding altogether even refusing to react to Task Manager "End Program@ command. The "not responding@ error message also comes up during navigation on line.

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