Firefox 33.0 slow in cursor and click response - although "stimulated" by other events

This is the same issue as
https://support.mozilla.org/en-US/questions/1026328
But i needed to create a new issue in order to be able to reply.

So disabling hardware acceleration fixed the issue for you as well?
Note that your System Details List shows multiple Flash plugins.
*Shockwave Flash 15.0 r0
*Shockwave Flash 11.5 r502
*Shockwave Flash 11.4 r402
You can find the installation path of all plugins on the about:plugins page.
*http://kb.mozillazine.org/Issues_related_to_plugins#Identifying_installed_plugins
You can check the Flash player installation folder for multiple Flash player plugins and remove older version(s) of the plugin (NPSWF32) and possibly (re)install the latest Flash player.
*(32 bit Windows) C:\Windows\System32\Macromed\Flash\
*(64 bit Windows) C:\Windows\SysWOW64\Macromed\Flash\

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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.

Why does iCloud email run so slowly in Firefox? Typing is frequently stopped and "non-responsive" shows up and everything freezes for a while

Why does iCloud email run so slowly in Firefox? Typing is frequently stopped and "non-responsive" shows up and everything freezes for a while. Doesn't happen with Outlook or Google?

Hi,
You can consider the [https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems Reset Firefox] feature via '''Help''' ('''Alt''' + '''H''') > '''Troubleshooting Information'''. If it is okay, you can then install the Mozilla Archive Format add-on.
If you have security software installed you can try to delete all existing entries for Firefox and its sub processes in the different configuration modules and try to fully trust/allow Firefox afresh. Even after network access is completed, Firefox would still need unlimited access to its disk cache/memory as well as its files. Please see [https://support.mozilla.org/en-US/kb/Firewalls this].
[http://kb.mozillazine.org/Firewalls AV/Firewall Configuration]

Firefox works very slow on startup and going to webpages. Why?

When I had firefox before it worked very fast. It was great. Since I installed Windows 7 it has started working very slow on startup and when going to webpages. In fact I always have to wait for it to move. Very poor results. What is the problem?
Also, don't ask me about Firefox 4; this is a real piece of crap. I tried it and deleted it. I am back to using 3.

When I had firefox before it worked very fast. It was great. Since I installed Windows 7 it has started working very slow on startup and when going to webpages. In fact I always have to wait for it to move. Very poor results. What is the problem?
Also, don't ask me about Firefox 4; this is a real piece of crap. I tried it and deleted it. I am back to using 3.

Slow HDD access and "clicking" noise

Hello,
I have built a computer based on the K7N2G series boards.
I have loaded on Windows XP and everything is fine except that the hard disk access is very slow.
This is because each time the computer accesses the master HDD (there is only 1 HDD), it makes a load "tap" before taking a small amount of data from the disk then pauses and "taps" again, gets data etc. It does this repeatedly until all the data needed has been accessed and then remains quiet.
I have tried the same hard drive in another machine as a slave drive and the problem does not occur when accessing data.
Is there a setting / jump I need to change?
I have checked the spec of the board and hard-disk for compatibility but have I missed something?
Is the board faulty? (he says doubtfully)
Thank you in advance.

Hmm...might be a power issue, actually. I saw this problem on a PC I built for a client just last week. There was a molex divider, one going to a vid card (9800 Pro secondary power) and the other to the main HDD. Whenever data access was required, the drive would 'click' repeatedly and go very slow indeed (I first noticed it when loading a game, then it was nonstop and started to cause some disk errors now and then). All I did, actually, was tighten all the power cords, and that seemed to have solved the problem. Just to be on the safe side, I later went back and put the HDD on its own molex and (of course) made sure it was tight. Maybe my problem was unique, but...well I registered just to let you know...you never know, sometimes. :D

Firefox is very slow to open and freezes often. Frequent message is "Script Error Message:

"A script on this page may be busy, or it may have stopped responding. You can stop the script now, or you can continue to see if the script will complete":
This is one of the scripts that always appears after the mozilla screen freezes for 2 minimal to 5 or more sometimes minutes, not only that the screen freezes, i can't support anymore this slowness, i need answers now, i don't want to switch to internet explorer or chrome or wherever. A search that took me 1 minute before, now takes me 5 minutes.
The Error Scripts:
- chrome://browser/content/tabbrowser.xml:0
- http://static.ak.fbcdn.net/rsrc.php/v1/yZ/r/sqp-kHZ_Qlq.js:15
Please help me with this troubles,i'll appreciate it...

this is what I get... is annoying and very much a pain
A script on this page may be busy, or it may have stopped responding. You can stop the script now, or you can continue to see if the script will complete.
Script: http://static.ak.fbcdn.net/rsrc.php/v1/yy/r/ATOft98wD79.js:112

Since update 3.6.11 I lost use of several plugins such as firebug (that I really need), Firefox become very slow or freeze, and I am not able to follow some links. Any possibility to solve or come back to older version ?

On windows XP sp3

Premiere Elements 10 is now 64 bit, but not PSE10.
Take a look at your scratch disk set-up and if you have a spare volume, allocate that first before the C drive. Elements use scratch disks when it gets low on RAM.
Click image to enlarge
Turn off face recognition and the auto-analyzer to improve performance.
When editing photos or videos check the task manager to see what background processes may be running and end them temporarily if not needed.

Slow FTP upload and click-and-draggable DIVs?

Does anyone know how to set Dreamweaver to only upload files that have been changed? I imported a site I created before with an old version of Front Page, and it takes a long time to upload because it's not only uploading a bunch of files that have not been changed prior. Front Page was a lot faster in uploading since it only uploaded changed files.
Also, does anyone know how to make a DIV click-and-draggable? When I create a new DIV, I can't seem to move it without altering the underlying HTML. An imported page allows me to click and move the DIV though.
Thanks in advance for the help!

I don't know the answer to your first question, but I can answer the second one.
Use the menu at the top, and chose Insert -> Layout Objects -> AP Div. This will put an ap div on the page. Click on it
then click on the blue handle on the upper left corner. Now drag it by the blue handle. The key is to drag by the handle.
I don't think this works on anything other than ap divs.

Firefox 4 is slow, it hangs and uses far-too much memory

I've just had to roll-back to Firefox 3.6.16.
For those with a similar problem, here's the link:
http://www.mozilla.com/en-US/firefox/all-older.html
Firefox 4 became unusable. Firefox 3.6.16 is using about 110,00k of memory - but Firefox 4 was using, typically 160,000k but anything up to 200,000k causing my machine to hang as it struggled to find the memory.
The weird thing about the memory use was that it just kept on climbing - just a couple of tabs open, nothing special, but you watch the memory usage keep stepping on in about 200k increments.
There appears to be a major memory leak in Firefox 4, and until it is rectified it really is, for me, completely unusable. I had to use explorer to download 3.6.16 it was that bad.

This is a reply I made to someone else who also finds the same problem. We think it is not a memory leak, but FF4 caching page in RAM.
Reply:
As I long time FF user (1st 20,000 downloaders) I am so disappointed with 4.0.
I find similar problem. 3.6.16 used approx. 6% of 2Gb RAM, 4 has been reported at 25%. Not caused by extensions as installed over 3.6 with no change in same few exts. Many other problems (e.g. 4 fails to remember allowed redirects & many undesired changes) so resorted to backup of 3.6. Not a definitive answer, but one sure to work is to install a totally portable version of 3.6.16 (or even 4 if you wish to play around with it), there are many portable versions available which do not mess with anything else on your machine, just Google Firefox Portable. I almost exclusively use Portable progs. for everything nowadays and if issue crops up it is as simple as deleting the folder it was installed in. Also it can be copied to a Flash Drive complete with all exts. & settings and used on any win os PC. This is a good recommendation. Hope this helps.

Firefox 36 very slow connecting - Says "Connecting ...." - while other browsers work

since FF 36 users within our network have problems connecting to web sites.
Time to load the entire page is in the range of Minutes.
Same behavior for different users after upgrading to FF36.
Creating a new profile - same behavior
Using portable version - same behavior
enabled / disabled:
network.dns.disableIPv6
network.dns.disablePrefetch
network.http.spdy.enabled.http2
network.http.spdy.enabled.http2draft
- same behavior
Using managed F-Secure Client Security
No problems at all with Chrome and IE11.
Very odd - any idea?

Note that Firefox 36.0.1 has been released, so you can update and see if it works with the pref I mentioned above set to default.

Very slow response when I click on a link, but almost instant response if I go back and click a second time.

I often get very slow response when I click on a link, any link. But if I go back and click on the link again, then the page will open almost immediately. I discovered this by accident and noticed that this happens every time. It would be nice if I got fast response on the first click without having to do this silly procedure and it seems to me that there's a simple fix. I would appreciate it if you could help. I'm open to any and all ideas. Thanks again.
Sincerely,
Al
Version 26.0 Firefox, Windows XP, sp/3

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.

Firefox is slow to load and view pages and repeated "Firefox is not responding" message

Firefox is quite slow to load and view pages with and I keep getting the "Firefox is not responding" message.
I have the latest version, plus the latest Adobe Flash Player, Shockwave Player, etc.

Note that Firefox 36 has been released officially.
*https://www.mozilla.org/en-US/firefox/36.0/releasenotes/
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

Firefox is so slow it is unusable

Adobe Acrobat 10.1.10.18
Intel Identity Protection tech 2.1.42.0 (2 entries?)
Java Deployment Toolkit 7.0.600.19 10.60.2.19
Java(TM) Platform SE 7 u60 10.60.2.19
Photo Gallery 164.35.03.728
Shockwave Flash 14.0.0.145
Shockwave for Director 12.1.2.152
Silverlight Plug-in 5.1.20514.0
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For some time now Firefox had been painfully slow on certain sites, such as Facebook and a few others. I finally decided to try and fix it. Using FF safe mode didn't do the trick, so I reset FireFox. The problem is exponentially worse now. Facebook is all but unusable along with nearly every other site. Internet Explorer works fine (never said that in reference to FF) and it is counterproductive to use FF. Flash seems to crash often.
The strangest thing is I have FF on another computer and it runs flawlessly.

Hi TigerBloodnAdonisDNA , [[Firefox is slow - How to make it faster]] as well as does this also happen in a new profile?
A quick test [[Use the Profile Manager to create and remove Firefox profiles]] from the command line and click create a new profile.

Firefox.exe suddenly only 2 KB (and IE 1 KB) & flagged up as malware

On January 13 (2015), I was surprised to find my Kaspersky anti-virus software (Pure 3.0 at the time) flagging up the following as malware (trojan):
firefox.exe C:\Program Files\Mozilla Firefox\firefox.exe HEUR:Trojan.WinLNK.StartPage.gena
iexplore.exe C:\Program Files\Internet Explorer\iexplore.exe HEUR:Trojan.WinLNK.StartPage.gena
eBay Sidebar for Firefox.lnk C:\Users\David\Desktop\eBay Sidebar for Firefox.lnk HEUR:Trojan.WinLNK.StartPage.gena
I followed the instructions to quarantine and re-boot. No problem. After re-boot, I could not access Firefox and discovered that it had indeed been quarantined - along with IE (which I rarely use) and eBay Sidebar for Firefox (which I haven't used in a long time). On restoring these, they are again identified as malware. Further investigation revealed that firefox.exe was only 2 KB in size - and IE was only 1KB.
Kaspersky advised to upgrade to Total Security, which I did and this stopped identifying the files as malware. Full virus checks, including from safe mode, revealed nothing. Running a suite of recommended anti-malware programs did pick up a limited number of bits and pieces (and which I deleted) that Kaspersky didn't, although my research on the net points to them all being the kind of things that produce unwanted adverts on browsers .... not anything that would wipe or rename programs (I didn't see any unwanted ads, though, possibly because of my settings in Firefox, Kaspersky and NoScript).
Kaspersky feels firefox.exe was corrupted (well at 2 KB, it's certainly not right) - although what corrupted it is another question. All other files in \Mozilla Firefox seem to be there, and I have no issues with any other software or files on my PC (just these three). Yet the same thing happened to IE at the same time. That makes a failing hard drive very unlikely indeed - but it does make me suspicious that there was *something* that deliberately did this, which Kaspersky did not pick up. However it would be unusual for decent anti-virus software like Kaspersky to miss something. Further, the same issue should have been occurring widely around the same time, because if everyone around the world were losing their browsers it would have made the news - not to mention advertising malware that corrupts both browsers being rather self-defeating!!
Incidentally, the desktop shortcuts have been replaced by the default Windows icon for programs that don't have a custom-made shortcut. And clicking on what was the Firefox shortcut opens a DOS box, that closes immediately; IE does the same but a "16 bit MS DOS Subsystem" error box appears (those were the days!) with:
C:\Users\Public\Desktop\Internet Explorer.lnk
The NTVDM CPU has encountered an illegal instruction.
CS: 123f IP:012d OP: 8f af 9f 6e ba Choose 'Close' to terminate this application.
[Clicking 'close' or 'ignore' both close the DOS box - and that's it. No virus or anything similar is picked up and four anti-malware programs I'm using now show my system to be clean]
So my questions are:
(1) Any thoughts as to what happened?
(2) I need to get Firefox working again. Can I simply copy firefox.exe from another machine and replace the existing 2 KB firefox.exe, and everything should be fine, as it was before .... or is it not as simple as that?? (I understand Firefox keeps preferences, etc., in separate files).
Thanks in advance for any comments.
Dave

Sorry you have had this problem
It my be possible and work if you overwrite the problem ''firefox.exe''
However that could cause problems and the usual solution would be to download and install Firefox again from an official site, and using a clean install involving deleting the existing program files. (CARE leave the Firefox profile folders and files alone. In fact it would be worthwhile, as a ''belts braces'' precaution; locating and backing them up first )
* See [[Firefox keeps crashing at startup#w_try-a-clean-install]]'''_try-a-clean-install'''
* [[Back up and restore information in Firefox profiles]]
** [[Profiles - Where Firefox stores your bookmarks, passwords and other user data#w_finding-your-profile-without-opening-firefox]]'''_finding-your-profile-without-opening-firefox'''
As for what happened, you have given a well reasoned and intelligent summary but after the event it is going to be almost impossible to pin it down. Sometimes AV does flag false positives especially temporarily &/Or if not fully updated.
===Clean Reinstall ===
Certain Firefox problems can be solved by performing a ''Clean reinstall''. This means you remove Firefox program files and then reinstall Firefox. Please follow these steps:
'''Note:''' You might want to print these steps or view them in another browser.
#Download the latest Desktop version of Firefox from [https://www.mozilla.org mozilla.org] (or choose the download for your operating system and language from [https://www.mozilla.org/firefox/all/ this page]) and save the setup file to your computer.
#After the download finishes, close all Firefox windows (or open the Firefox menu [[Image:New Fx Menu]] and click the close button [[Image:Close 29]]).
#Delete the Firefox installation folder, which is located in one of these locations, by default:
#*'''Windows:'''
#**C:\Program Files\Mozilla Firefox
#**C:\Program Files (x86)\Mozilla Firefox
#*'''Mac:''' Delete Firefox from the Applications folder.
#*'''Linux:''' If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see [[Installing Firefox on Linux]]. If you downloaded and installed the binary package from the [http://www.mozilla.org/firefox#desktop Firefox download page], simply remove the folder ''firefox'' in your home directory.
#Now, go ahead and reinstall Firefox:
##Double-click the downloaded installation file and go through the steps of the installation wizard.
##Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.
More information about reinstalling Firefox can be found [[Troubleshoot and diagnose Firefox problems#w_5-reinstall-firefox|here]].
WARNING: Do not use a third party uninstaller as part of this process. Doing so could permanently delete your [[Profiles|Firefox profile]] data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be easily recovered unless they have been backed up to an external device!

Firefox is extremely slow to shutdown

For me this a very annoying problem!
Firefox is '''extremely slow''' to shutdown, and I can't imagine what is it doing for so long after I have closed all frames and windows (note that I am '''not '''requesting to save the session).
I tried the solutions posted in older posts (https://support.mozilla.com/it/questions/809195) with no effect. The only add-ons that I have active are the Norton tools (I have Norton Internet Security 2011) and NoScript, plus sometimes Downloadhelper,
but I tried to disable everything and the problem remains, so it's something in the Firefox core.
After a short navigation the delay in closing Firefox is tolerable, but after having surfed the net for a while the delay may get huge, like 5' or even 10'! It's incredible!
The process monitor displays a firefox process taking a lot of memory (> 500 MB sometimes) and many plugin-container processes that also take a long time to close.
Before shutting down firefox requests even more memory, so that the allocated memory has a peak, then it finally drops.
Another strange thing is that if I kill the firefox process I get the memory quickly freed without any apparent damage, so what?
This problem has showed up with the latest versions of Firefox (4 and 5), I don't remember such a behavior one year ago or more.
I would appreciate very much some help and insight from someone of the developers, as well as feedback from other users, of course.

Are you using Clear Recent History to clear the Cookies when you close Firefox?
*https://support.mozilla.com/kb/Clear+Recent+History
That can cause plugin-container processes to appear that Firefox opens to clear cookies from plugins.

Firefox 33.0 slow in cursor and click response - although "stimulated" by other events

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