Firefox has become problematic

Since version Firefox 23 and above, the computer has become very slow. Does not respond and we are stopping to use this broweser too.
We expect with every update firefox, some better performance. But no.... will find more degraded... the same computer... firefox worked very nicely until version 22 but now 26 and makes our computers very slow.
Only firefox works very slow... otherwise Internet Explorer and Zgoogle Chrome works fine. Earlier it was a reverse case... We used firefox due to some good features of easyness in usage...
But now a days find firefox un-responding for any thing... and every thing... including its opening itself... where it worked nicely upto version 22.

Have you tried all of the troubleshooting steps in the [[Troubleshoot and diagnose Firefox problems]] article, including a reinstall a Firefox Reset?
If so, then It might also help if you could furnish some non-personal information . Please do the following while you have Firefox open:
*Click the Firefox button at the top left, then click the ''Help'' menu and select ''Troubleshooting Information'' from the submenu. If you don't have a Firefox button, click the Help menu at the top and select ''Troubleshooting Information'' from the menu.
Now, a new tab containing your troubleshooting information should open.
*At the top of the page, you should see a button that says "Copy text to clipboard". Click it.
*Now, go back to your forum post and click inside the reply box. Press Ctrl+V to paste all the information you copied into the forum post.
If you need further information about the Troubleshooting information page, please read the article [[Use the Troubleshooting Information page to help fix Firefox issues]].
Thanks in advance for your help!

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After the recent update My Firefox has become unresponsive alot.

I don't know why but now Firefox has become so unresponsive.
It particularly happens when I visit Youtube.
It almost become impossible to even close it.

* https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding
* https://support.mozilla.com/en-US/kb/Firefox%20hangs#w_hang-at-exit

Firefox has become other browsers on my windows computer, with their icon. I can't uninstall or redownload Firefox without error message

Firefox has become internet explorer or google chrome, with their icon and everything on my windows XP computer. I cannot uninstall or redownload Firefox without it saying "Firefox must be closed to proceed with the uninstall/install. Please close Firefox to continue." It says that when I dont even have Firefox open, and I closed everything with task manager. How can I get Firefox back? It's the only brower I ever use.

Please try a reboot of your pc and if that doesn't work, try the following:
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 http://www.mozilla.org and save the setup file to your computer.
#After the download finishes, close all Firefox windows (click Exit from the Firefox or File menu).
#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.
Please report back to see if this helped you!

Firefox has become slow and bloated.

Since using the add-ons my once elegantly swift Firefox has become nonreactive and the height of the toolbars, bookmarks and the rest takes up too much space over the screen.

It's neither, it's using the "add a keyword for this search" button that appears in the context menu of most in-page search fields. This creates a bookmark with the place in the GET request where the query should be replaced with %s.
I've imported both of those files into my new profile, and the bookmarks do indeed get imported, but the keywords do not, so I can't use them to search.

Firefox has become extremely slow in the recent times

Firefox suddenly has become very slow. It takes too much time to load all websites and even the typed words and scrolling has a great delay in appearing. It becomes unresponsive very often. I tried reinstalling it and even reset it. Its becoming a pain to use this to surf the net. Please do help!!

I also have found that Firefox has become a dog. I've followed one thread that disabled the plugin-container with no help. 20.0.1 can hang for over a minute and actually hog my entire CPU so I can't even start Chrome! I like my FF plug-ins, but the performance problems of FF 20 are becoming intolerable and no one seems to know what the heck! Chrome does not present the problems and I have been visiting and working at the same websites. If many folks are encountering this mess, I suspect that FF is done for. I have actually found that the Android FF is also tending to slow down my smartphone - stall it! I am a few days away from just removing FF from my computing life.

Firefox has become so unstable I have to reload it every time I use it

XULRunner
Error: Platform version _____ is not compatible with minVersion >= 15.0
maxVersion <= 15.0
_____ = 13.0, 14.0 15.0 15.0.1
Regardless of what I do, removing ALL Mozilla Files, Passwords, Preferences etc... there crashes happens and now I am also getting BLUE SCREEN OF DEATH. If you don't know what that is you can't help me anyways. So what is the solution???

Did everything you said and when given the option to start Firefox up after install and I declined hoping to be able to copy everything before things got on wonky but sadly they downloaded badly. When I attempted to open Firefox XULRunner Error popped it's ugly head up once again 15.0 is not compatible despite downloaded version 15.0.1 Personally I think Firefox has become so horrible the last 3 patches I may stop trying to use it. IE 9 is slower, has worse navigation but doesn't require restarting my computer every time I download Firefox and use it One Time before it becomes unuseable. This is BullS_ _t.

Printing something from from the internet or email using Firefox has become exremely slow

''duplicate of this - https://support.mozilla.com/en-US/questions/853805''
Recently a problem exists when I print something while in Firefox. Printing has become very very slow. I tried printing while using Safari and the printing speed was normal. Please help.

Try the '''''reset''''' described here: 
http://kb.mozillazine.org/Problems_printing_web_pages#Reset_printer

Firefox has becomes unresponsive and slow after I tried to install addons (not installed)?

I recently format my computer and reinstall the windows 7, since this was the only solution that I know to fix the problem with Firefox (I previously had this problem too). I download the latest version of firefox 33.0.2 and install it . This version was super fast. But becomes unresponsive and slow, when I tried to install the add-ons. I visited the official website of firefox and search for the addons, when I tried to install some addons, Firefox crashed. From then on, it has becomes quite slow and can't restore previous sessions. Even to type my email address, It takes more than 5 minutes and becomes unresponsive frequently (after I typed each letter).
I want to know whether this is due to some viruses, or this version of firefox is not "stable"

Hey there,
We're sorry to hear that Firefox is crashing. In order to assist you better, please follow the steps below to provide us crash IDs to help us learn more about your crash.
#Enter ''about:crashes'' in the Firefox address bar and press Enter. A Submitted Crash Reports list will appear, similar to the one shown below.
#Copy the '''5''' most recent Report IDs that start with '''bp-''' and then go back to your forum question and paste that into the "Post a Reply" box. (Please don't take a screenshot of your crashes, just copy and paste the ID's. The below image is just an example of what your Firefox screen should look like)
[[Image:aboutcrashesFx29|width=520]]
 
After you've done this, you could 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, disables most add-ons (extensions and themes).
If Firefox is open, you can restart in Firefox Safe Mode from the Help menu:
*In Firefox 29.0 and above, click the menu button [[Image:New Fx Menu]], click Help [[Image:Help-29]] and select ''Restart with Add-ons Disabled''.
*In previous Firefox versions, click on the Firefox button at the top left of the Firefox window and click on ''Help'' (or click on ''Help'' in the Menu bar, if you don't have a Firefox button) then click on ''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: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.''
Hope this helps!
Curtis Parfitt-Ford
Mozilla Support

Firefox has become slower since i downloaded latest one

Since I have download latest firefox it has become slower than before, why is this please?

this is total bullshit. so frustrated with this nonsense.

Firefox has become noticeably slower - particularly in closing - i haven't timed it but sometimes it seems to take at least a minute for it to finally close - any suggestions?

i also get a message sometimes that says something is going wrong with a script - i always choose to stop the script - i don't know if its related
the slow closing isn't an every time occurrence but happenes more than 50% of the time - it seems to get worse the longer Firefox has been open

My first reaction is it sounds like you're pocket dialing your passcode? In iOS 6, it used to be you could go Diagnostics & Usage Data under Settings and see if things were crashing on your phone due to bad memory, but don't know if that works in iOS 7.0.4 on the 4s, but that's the first thing I'd look for. (I think crash notifications return in iOS 7.1?)

Firefox has become corrupted after update

Well...the title or were the question should be says it all, it happened not to long ago like 5 min. ago after a routine up date firefox didn't open. I figured well this has happened before so I went through the usual and restarted my computer, that didn't work, I uninstalled and tried to reinstall that didn't work either afterwards every time I tried to install aftter installing, it said "windows is searching for firefox.exe, to locate this file your self click browse" when I clicked where the firefox icon should be.
I did browse and I found firefox's folder, thing is it had no executable file so I uninstalled again, every time I did so it said "an error occured while trying to uninstall mozilla firefox 13.0.1 (d86 en-US) it may have already been uninstalled" which is strange it did not tell me that the first time I tried and after many re-installations. I went through my files and found were mozillas folder was at apparently it did not install or uninstall so I proceeded to delete everything not before I backed up my profile (at least I think I did).
When I got down to the last item in the folder which was another folder it did not want to uninstall the name of that folder was "uninstall" (yes I know inception who what of guessed) turns out the file had corrupted every time I tried to delet it said "An unexpected error is keeping you from deleting the folder. If you continue to recieve this error you can use error code

You can do a disk check with the chkdsk.exe program.
If you run the chkdsk.exe program from a cmd.exe Command window then you can read the response from the chkdsk.exe program.
Open a cmd.exe window:
Start > Run: cmd.exe <press Enter>
At the command prompt (>) type or Copy&Paste: chkdsk.exe /f /r <press Enter> (put a space before /f and /r)
If you get something like: Would you like to schedule this volume to be checked the next time the system restarts? y/n then answer the question with "Y" and close all programs and reboot the computer.
See also:
*http://support.microsoft.com/kb/315265/
Download a fresh Firefox copy and save the file to the desktop.
*Firefox 13.0.x: http://www.mozilla.org/en-US/firefox/all.html
Uninstall your current Firefox version, if possible.
*Do NOT remove personal data when you uninstall your current Firefox version, because all profile folders will be removed and you will also lose your personal data like bookmarks and passwords from profiles of other Firefox versions.
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.
*http://kb.mozillazine.org/Uninstalling_Firefox
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
*http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall

Navigation between diff windows in firefox has become very slows. Plz Help.

firefox responds very slow when I want to go to a different window that is already opened or if I press + button to open new window/ tab, the response is very slow. Some times the firefox do not responds at all, a message comes that "Firefox is not responding", and after that the browser starts reloading all the pages. This is quite annoying. Kindly help.
I am using WIN 7. the system has 3GB RAM, 2.2GHz intel processor, 32 bit OS.

1.Please update to Firefox 19 Update Firefox to the latest version, then reset Firefox again Reset Firefox – easily fix most problems.
2."Firefox hangs when you quit it": https://support.mozilla.org/kb/Firefox+hangs
I think these may help you to solve your problems.

Firefox has become a bloody nightmare!!- what on earth have you done at the update?! how do i stop any 'new' opened tab opening as 'zone alarm'??!!!

I have had to reset my homepage to my regular one (msn.com) as Firefox suddenly put 'zone alarm' into my home page (default ) and also the search bar (instead of Google). I have reset the Google in the search bar, and have reset my homepage to www.msn.com - yet, despite this, every single time a new tab is opened low and behold it opens up as the Zone Alarm home page.
I either need to solve this immediately, or Firefox, you're history on my laptop. Utter trash !!!

Do you have ZoneAlarm software installed?
If that is the case then you need to check this in that software or contact ZA for support.
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
If you do not keep changes after a restart or otherwise have problems with preferences, see:
*http://kb.mozillazine.org/Preferences_not_saved

I read on the website that the update 4.0 was supposed to work faster than the last but I that since I updated (2 days ago) my work in firefox has become quite sluggish. Any suggestions?

Hi there. I upgraded to firefox 4 on Monday (two days ago) since I saw that the new version was supposed to run faster than firefox 3 that I was using. However, since I've started using it, I wait longer for a page to download than I had to before and the whole browser just is sluggish to respond. Any suggestions?

Sounds like it either believes that there are headphones plugged in, or the switch is broken.
Why in the world would you take it to Best Buy for service? Take it to an Apple Store. They can replace it on the spot if it's defective.

After upgrading to 6.0.2 from 6.0.1, Firefox has become laggier in terms of response time.

For example, new tabs open/close after about a half-second pause. I notice when I do this, the CPU activity spikes to about 25% and dies down. Sometimes typing text will pause as well. Its behavior is as if it was bogged down with a memory leak.

Update All your Firefox Plugins
* https://www-trunk.stage.mozilla.com/en-US/plugincheck/
* http://www.mozilla.com/en-US/plugincheck/
'''=> When Downloading Plugins Update setup files, Remove Checkmark from Downloading other Optional Softwares with your Plugins (e.g. Toolbars, McAfee, Google Chrome, etc.)'''
Troubleshooting extensions and themes
* https://support.mozilla.com/en-US/kb/Troubleshooting%20extensions%20and%20themes
Check and tell if its working.

Firefox has become problematic

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