Firefox is taking a long time to open the first time I click on it and also a dialouge box comes up stating firefox is already running, but is not responding, you must close existing firefox process? What is going on?

After I start my computer in the morning, I go to my email, then I click on firefox, with google as my homepage, it takes a long time for firefox to show up on the computer. It says it is connecting, then when I close firefox, and go to reopen it again, a dialog box opens up that says firefox is already running and I must close existing firefox process first. I have not run into this problem before.

* The first time you start up any application after turning on your computer is called a cold start, which is why Firefox takes a while to load right away. (I've noticed that future versions of Firefox start up faster on a cold start then Firefox 5.0.1.) Also, a lower amount of RAM could be slowing its start-up down since Firefox is kind of memory hungry.
* As for the second part of your question, press ctrl,Alt, and the delete keys on your keyboard. The Windows Task Manager should start. Go to the processes tab and look for 'firefox.exe'. Right click on the firefox.exe and click 'End Process'. Hit Yes and wait for a minute.
* Then opening Firefox again.
Hopefully this helped somewhat!

Similar Messages

  • I close firefox and try to open it again later, it WON'T and says, "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system." Firefox isn't running .

    After I turn on my laptop and click on firefox it works fine and it opens THE FIRST TIME. So can you help? i DON'T WANT TO RESTaRT my computer everytime and sometimes have to clsoe firefox b/c I'm typing paper and computer goes slow.

    Sounds like a "hang at exit" problem. There are several possible causes for that error. See:
    * How to stop the running Firefox process
    ** In Task Manager, does firefox.exe show in the '''<u>Processes</u>''' tab?
    ** See: http://kb.mozillazine.org/Kill_application
    * What may cause Firefox to hang at exit
    ** http://support.mozilla.com/en-US/kb/Firefox+hangs (see "Hang at exit" section)
    ** http://kb.mozillazine.org/Firefox_hangs
    ** https://support.mozilla.com/en-US/kb/Firefox+is+already+running+but+is+not+responding
    * You may need to try Firefox Safe Mode
    ** You may need to use '''Safe Mode''' to locate the problem: http://support.mozilla.com/en-US/kb/Safe+Mode
    **Firefox Safe Mode is a diagnostic mode that disables Extensions and some other features of Firefox. If you are using a theme, switch to the DEFAULT theme: Tools > Add-ons > Themes '''<u>before</u>''' starting Safe Mode. When entering Safe Mode, do not check any items on the entry window, just click "Continue in Safe Mode". Test to see if the problem you are experiencing is corrected.
    ** If the problem does not occur in Safe-mode then disable all of your Extensions and Plug-ins and then try to find which is causing it by enabling '''<u>one at a time</u>''' until the problem reappears. '''<u>You MUST close and restart Firefox after EACH change</u>''' via File > Restart Firefox (on Mac: Firefox > Quit). You can use "Disable all add-ons" on the Safe mode start window.
    ** See the following for more information
    *** http://support.mozilla.com/en-US/kb/Troubleshooting+extensions+and+themes
    *** http://support.mozilla.com/en-US/kb/Troubleshooting+plugins
    *** http://support.mozilla.com/en-US/kb/Basic+Troubleshooting

  • I get a message that says ff is already running but is not responding ,to open a new window, you must close the existing ff process or restart your system, how do i close the existing ff process?

    I have windows 7 on dell laptop. I am working on a Word Document and want to go to a diff window for some information. I click on the FF icon on my desktop and get a message that says...FF is already running but is not responding. To open a new window, you must close the existing ff process or restart your system..how do you close the existing ff process?
    == This happened ==
    Every time Firefox opened
    == I got my new dell laptop four weeks ago with window 7 installed

    See https://support.mozilla.com/en-US/kb/Firefox+is+already+running+but+is+not+responding

  • Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system. I have a wndiws 7 system and use a Intel core processor. I have restarted several times and still ge this

    Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system. I have a wndows 7 system and use a Intel core processor. I have restarted several times and still ge this error. I have also tried to reinstall firefox and get the same error
    == This happened ==
    Every time Firefox opened
    == today ==
    == User Agent ==
    Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; MDDS; InfoPath.2; .NET4.0C; AskTbUT2V5/5.8.0.12304)

    <u>'''Kill Application'''</u>
    In Task Manager, does firefox.exe show in the <u>'''Processes'''</u> tab?
    See: [http://kb.mozillazine.org/Kill_application Kill Application]
    '''<u>Causes and solutions for Firefox hanging at exit:</u>'''
    [[Firefox hangs]]
    [http://kb.mozillazine.org/Firefox_hangs#Hang_at_exit Firefox hangs at exit]
    [[Firefox is already running but is not responding]]
    <u>'''Safe Mode'''</u>
    You may need to use '''[[Safe Mode]]''' (click on "Safe Mode" and read) to localize the problem. Firefox Safe Mode is a diagnostic mode that disables Extensions and some other features of Firefox. If you are using a theme, switch to the DEFAULT theme: Tools > Add-ons > Themes <u>'''before'''</u> starting Safe Mode. When entering Safe Mode, do not check any items on the entry window, just click "Continue in Safe Mode". Test to see if the problem you are experiencing is corrected.
    See:
    '''[[Troubleshooting extensions and themes]]'''
    '''[[Troubleshooting plugins]]'''
    '''[[Basic Troubleshooting]]'''
    If the problem does not occur in Safe-mode then disable all of your Extensions and Plug-ins and then try to find which is causing it by enabling <u>'''one at a time'''</u> until the problem reappears. <u>'''You MUST close and restart Firefox after EACH change'''</u> via File > Restart Firefox (on Mac: Firefox > Quit). You can use "Disable all add-ons" on the Safe mode start window.

  • Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system i keep geting this nearly every time try open firefox and only in the house getting it

    i get this get every time i shut down firefox then reboot it or try at least Firefox is already running, but is not responding.

    ok its still ding but heres the errors source code its long
    function() function ga(a,b) function ha(a,b)
    var ia="appendChild",q="push",ja="valueOf",ka="width",la="round",ma="slice",r="replace",na="floor",oa="cookie",pa="charAt",qa="_height_",s="indexOf",u="write",ra="domain",sa="match",ta="opera",v="_html_",va="createElement",w="getParameter",wa="addEventListener",xa="referrer",ya="attachEvent",za="name",Aa="contentWindow",Ba="getTime",Ca="getElementsByTagName",x="toString",y="length",Da="propertyIsEnumerable",Ea="plugins",z="prototype",Fa="setTimeout",A="document",B="split",C="userAgent",D="screen",
    E="style",Ga="body",Ha="_width_",F="call",G="random",Ia="_is_afc_",H="substring",Ja="navigator",Ka="parentNode",La="height",I="join",Ma="toLowerCase",J=this,Na=function(a,b,c) )},Oa=function(a) else return"null";else if(b=="function"&&typeof a[F]=="undefined")return"object";return b};o[na](o[G]()*2147483648)[x](36);
    var Pa=function(a,b) }else return function() },K=function(a,b,c) ,Qa=function(a,b,c) ,Ra=function(a,b) c.prototype=b[z];a.Ca=b[z];a.prototype=new c};var Sa=function(a,b) catch(c) return a[x]()}else if(Jb()) catch(d) catch(e) try catch(m){}}if(b) }return"0"}function Lb(a,b) d(m)}},Sb=function(a) ,Tb=function(a,b) ,Ub="http://"+Wa()+"/pagead/osd.js",Wb=function(a) },Xb=function(a,b) ,p=!!P&&!!P.gaGlobal;if(d) else j.dh=c;j.hid=p&&P.gaGlobal.hid?P.gaGlobal.hid:o[la](o[G]()*2147483647);return P.gaGlobal=j}function sc() d+=a;d+=pc[xa]?pc[xa]:"";for(a=d[y];b>0;)d+=b--^a++;return tc(d)}
    function tc(a) ,Hd=function(a,b,c,d) else ua[q]("")}}if(U>=0) };Y[z].ja=function() ;
    var ne=function(a) };Y[z].k=function(){};
    var nd=function(a,b) ,ue=function() ,xd=/\+/g,ve=function(a,b) ,$=function(a,b,c) ,Z=function(a,b,c) ,we=function(a,b) },xe=function(a,b,c) return b[H](0,a)+b[H](c+1,b[y])}return b},ye=function(a,b,c) ,Ae=function(a,b,c) ,ze=function(a,b,c) ,Be=function(a,b,c,d){$(a,"url",
    xe(a,ze(a,i,n),i.GA_googleEnv[w]("google_preview")));$(a,"ref",n[xa]);$(a,"lmt",(Date.parse(n.lastModified)/1E3)[x]());Z(a,"dt",b[Ba]());if(n[Ga]) b=f;if(b=Nb(b)){$(a,"biw",b[ka]);$(a,"bih",b[La])}b=Sc(i);$(a,"ifi",b);b=Pb(i);b!=0&&$(a,"ifk",b[x]());if(a.ca) b=i.GA_googleEnv[w]("deb");b!=g&&$(a,"deb",b);b=i.GA_googleEnv[w]("haonly");b!=g&&$(a,"haonly",b);b=ce(S());k[C][s]("MSIE ")>0&&Fd(b,
    "google_encoding",n.charset,h);e="";if(d)e=Id(S().a,b,S().B,a.Aa);else if(e)a.b+="&"+e},Ce=function(a,b,c) (b=Ae(a,b,c))&&$(a,"cdm",b)},De=function(a) ,Ee=function(a,b) },Ie=function(a) c=Fe(a.f[x]());var d=Ge(),e=He();c&&b[q](c);d&&b[q](d);e&&b[q](e);b[y]>0&&$(a,"eid",b[I]())};
    Y[z].h=function(a) ;Mb(a);Ee(this,a);Z(this,"flash",Kb());this.b=this.b[H](0,2E3);this.b=this.b[r](/%\w?$/,"");if(this.da) return this.b};
    var ld=function(a) ,Je=function(a,b) ,Ke=function(a,b,c,d) ,Me=function(a,b,c,d,e,m) ,Ne=function(a,b,c) else b[ia](j);if(a.m) else j[Aa][A][u](d);Le(i)?j[Aa][A][u]("document.close();"):j[Aa][A].close();Wd(S(),c)};function Oe(a,b) K("GA_googleCreateDomIframe",Oe);
    var Pe=function() ,Ye=function(a,b) else for(c in b)if(!R(b[c])) var d=h;for(c in b)if(!R(b[c])) e!=g&&e._cookies_!=g&&i._GA_googleCookieHelper.L(e)}};function Ze(a) K("GA_googleSetAdContentsBySlot",Ze);function $e(a) Ra($e,Y);
    $e[z].k=function() ;
    var af=function(a,b) Me(a,
    d,m,c,e[Ha],e[qa])}else }},kf=function(a,b) ;function lf(a) K("GA_googleSyncAdSlotLoaded",lf);function mf(a) Ra(mf,Y);mf[z].k=function() ;
    var nf=function(a) ;mf[z].j=function() ;var of=function(a) else }}};function pf() K("GA_googleReallyFetchAds",pf);
    mf[z].n=function(a) };var rf=function(a,b) ;function sf(a) K("GA_googleAsyncAdSlotLoaded",sf);var qf=function(a,b) ,a.delay);d.$++}}else Ue(a,b)};mf[z].G=function(){};
    function tf(a) Ra(tf,Y);tf[z].k=function() ;tf[z].j=function() ;tf[z].z=function(a) else a=this.h(a);return a};tf[z].n=function(a) }};
    function uf(a) Ra(uf,Y);uf[z].k=function() ;uf[z].j=function() ;uf[z].z=function(a) else a=this.h(a);return a};uf[z].n=function(a) }};
    var vf=function(){if(Jb()){var a=ue();return a

  • When I click to open firefox it says that "firefox is already running but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system" and I've tried to shut down and restart my computer but it keeps

    when i click to open firefox it says that "firefox is already running but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system." and I've tried to shut down and restart my computer but it keeps showing the same message. I've even uninstalled Firefox and then reinstalled in the hopes that the problem would be solved but it this message is still popping up. What can I do to solve this problem?
    == This happened ==
    Just once or twice
    == I was on facebook trying to upload pictures yesterday. ==
    == User Agent ==
    Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0; InfoPath.1)

    Do you have a profile lock file in your profile folder? If so, delete it and see if TB runs properly:
    http://kb.mozillazine.org/Profile_in_use#Remove_the_profile_lock_file

  • Firefox is OPEN and working fine, but when I click a link in Thunderbird I get 'Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.'

    If I click a link on my desktop or in any other program (while Firefox is open and running), I get this message: "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system." There's about a billion links for this if you Google it, but they all say that Firefox wasn't shut down properly. (OK, maybe not ALL of them, but if the needle is in that haystack, I haven't yet found it.) That's not the issue in my case since I haven't shut FF down at all.
    == This happened ==
    Every time Firefox opened
    == IDK

    This began to happen to me when I tried to run two separate profiles simultaneously on the same installation of firefox with -no-remote

  • When I try to access Firefox I get this message: "Firefox is already running, but is not responding. To open a new windwo, you must first close the existing Firefox process, or restart your computer."

    When I click on Firefox I get a window that says: "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your computer." I can't see where anything is running on firefox. I restarted the comuter and I shut down the computer. I also ran a full scan of the computer.

    Sorry I am a PC user but have you seen
    * [[Firefox is already running but is not responding]]
    Firefox will be hanging for some reason. The quick solutions to kill the process and try again. The next step is to try to see if it will start and exit normally a couple of times, if so the problem is solved. If not the reason needs further investigation.
    See [[firefox hangs]]
    An immediate likely culprit after repeated problems are the duplicate session restore files, as discussed in the above KB article.

  • Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system. How do I fix this? I am ready to go back to internet explorer!

    Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.
    This box appears and then firefox quits...never opens.
    I have uninstalled, and loaded firefox 5 times and never got it to run.

    See [[Firefox is already running but is not responding|Firefox is already running but is not responding]].

  • I consistently get this messsage and have to restart the system - "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system". When I look at the Task Manager no Fire

    I consistently get this message and have to re'boot my system. "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system"
    == User Agent ==
    Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; GTB6.5; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET CLR 3.0.04506; InfoPath.2; Media Center PC 5.0; SLCC1)

    <u>'''Kill Application'''</u>
    In Task Manager, does firefox.exe show in the <u>'''Processes'''</u> tab?
    See: [http://kb.mozillazine.org/Kill_application Kill Application]
    '''<u>Causes and solutions for Firefox hanging at exit:</u>'''
    [[Firefox hangs]]
    [http://kb.mozillazine.org/Firefox_hangs#Hang_at_exit Firefox hangs at exit]
    [[Firefox is already running but is not responding]]
    <u>'''Safe Mode'''</u>
    You may need to use '''[[Safe Mode]]''' (click on "Safe Mode" and read) to localize the problem. Firefox Safe Mode is a diagnostic mode that disables Extensions and some other features of Firefox. If you are using a theme, switch to the DEFAULT theme: Tools > Add-ons > Themes <u>'''before'''</u> starting Safe Mode. When entering Safe Mode, do not check any items on the entry window, just click "Continue in Safe Mode". Test to see if the problem you are experiencing is corrected.
    See:
    '''[[Troubleshooting extensions and themes]]'''
    '''[[Troubleshooting plugins]]'''
    '''[[Basic Troubleshooting]]'''
    If the problem does not occur in Safe-mode then disable all of your Extensions and Plug-ins and then try to find which is causing it by enabling <u>'''one at a time'''</u> until the problem reappears. <u>'''You MUST close and restart Firefox after EACH change'''</u> via File > Restart Firefox (on Mac: Firefox > Quit). You can use "Disable all add-ons" on the Safe mode start window.

  • Sometimes when I close Firefox and try to open it in few moments it shows me message "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system." However, I haven't o

    Sometimes when I close Firefox and try to open it in few moments it shows me message "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system." However, I haven't opened any additional Firefox related programs, and previous Firefox is closed. First I though it is because of my computer, but then I discovered that other people have the same problem as well
    == This happened ==
    A few times a week
    == some 2 month ago ==
    == User Agent ==
    Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.5.30729; InfoPath.2; .NET CLR 3.0.30729)

    Hi Andis.
    First of all, this is completely normal behavior, although it's a bit irritating, I know. What happens is that when you close Firefox, despite the window disappearing right there and then, Firefox keeps running for a little bit until the whole closing procedure is completed. This can take a fraction of a second on fast computers, or can take a few seconds on slow computers or when Firefox is storing a large session (if you save your tabs). All you have to do is wait a bit until Firefox closes, and then open it again.
    To see if it's still running, you can press CTRL+SHIFT+ESC and then, under the Processes tab, you can see if firefox.exe is still there. If it's taking an unusual amount of time to close (which happens very rarely, and only if the browser freezes on exit), you can force the application to terminate from this application (task manager).
    Firefox 4.0 will reduce by 97% the time it takes firefox.exe to close, so this problem will be basically erased for Firefox's next version.
    Until then, I can recommend you this extension, which helps you restart your browser more easily and without bothering about closing times:
    https://addons.mozilla.org/en-US/firefox/addon/3559/
    Hopefully this will help.

  • I get this warning on firefox a lot...."Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.

    '''''Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.''''' this is a message I get a lot. Whats happening? Thanks Tony'

    See "Hang at exit":
    * http://kb.mozillazine.org/Firefox_hangs
    * https://support.mozilla.com/kb/Firefox+hangs

  • Doesn't start when starting as administrator. Error Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.

    Update firefox, it asked me to update flash, I tried to update flash but it said I had to close firefox. A box came up and said the Flash install would continue when I closed firefox. I closed all firefox windows and no update of flash occurred. I tried relaunching firefox but got the "Doesn't start when starting as administrator. Error Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system." message. I rebooted the system, no improvement. I tried to run firefox as administrator and got the same message. Either I find a fix or I won't be able to use firefox and will have to go back to ie.

    -> press '''CTRL''' + '''SHIFT''' + '''ESC''' to Open Task Manager -> Processes tab -> right-click '''firefox.exe''' and click '''End Process Tree''' -> close Task Manager
    Troubleshooting extensions and themes
    * https://support.mozilla.com/en-US/kb/Troubleshooting%20extensions%20and%20themes
    Troubleshooting plugins
    * https://support.mozilla.com/en-US/kb/Troubleshooting%20plugins
    Check and tell if its working.

  • I deleted the profile and firefox4 and then downloaded firefox4 again. But when i click firefox it says Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process,or restart your system.HELP!

    somehow i couldn't get rid of one website called www.searchqu.com/405 set as my homepage... I tried all solutions given to change the homepage but whenever i restarted firefox that homepage used to come automatically.. So, I deleted the profile (even from recycle bin!!) and deleted the firefox and downloaded it again hoping to get my problems fixed (which didn't happen!) because i'm getting dialog box saying- Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.

    You don't say which operating system you have installed?
    Assuming it's Windows, right click a blank part of the Windows Taskbar and go to Task Manager. Then click the ''Processes ''tab, find '''firefox.exe''' and then right click it and choose '''End Process'''.

  • Iget this when I try to open a session....Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.task mngr shows no open firefox processes.

    I get this when I try to open a session....Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.The task manager shows no open Firefox processes.I had two users on this laptop running Firefox and I tried deleting the program on both users. I then downloaded the newest version, installed it and I still get the error message as before. HELP!!!! I loved the browser program when it was working before and would rather use it than other browsers.

    See "Hang at exit":
    * http://kb.mozillazine.org/Firefox_hangs
    * https://support.mozilla.com/kb/Firefox+hangs

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