When i open firefox, no window opens

no window opens when i access FF, also clicking open new window doesn't work

Try to reset the launch services:
* http://thexlab.com/faqs/resetlaunchservices.html
Try to repair the disk permissions:
* http://thexlab.com/faqs/repairprocess.html

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When I close Firefox, the windows closes normally, but firefox.exe still appears in Processes in Task Manager. I have to End Process to open Firefox again, and it goes to Restore Last Session page.

When I close Firefox, the windows closes normally, but firefox.exe still appears in Processes in Task Manager. I have to End Process to open Firefox again, and it goes to Restore Last Session page.
Quando eu fecho o Firefox, a janela fecha normalmente, mas o firefox.exe ainda aparece no Processos do Gerenciador de Tarefas. Eu tenho que Finalizar Tarefa pra abrir o Firefox de novo, e quando abre vai para a página de Restaurar Última Sessão.

I have the same problem - every time I close firefox (using either the red x or by selecting file ---> exit) the program appears to close normally, but the firefox.exe *32 process continues to run. If I try to re-open firefox normally I get a message that the program is still running and I need to go into task manager and manually kill the process.
I could also kill the process from the command prompt, but both of those methods are slow and annoying. This issue has only been occurring for the last 24 hours or so; to the best of my knowledge I haven't downloaded any new software or updated any plug-ins that would have caused a switch from firefox's normal awesomeness. Norton doesn't show any new viruses or other nastiness on my computer.
I'm running 64 bit Windows 7 Home Premium edition.

When I downloaded Firefox for windows, the security scan wouldnt allow it. I operate on windows 7 and was downloading mozzila firefox8

When I downloaded Firefox for windows, the security scan wouldnt allow it. I operate on windows 7 and was downloading mozzila firefox8

Hi annarepublic78,
As per the above mentioned error, your Win CS6 download was not complete, either it was in process or was interrupted. This is the only reason you see the MasterCollection_CS6_LS16.7z.crdownload. Here .crdownload means the download is in process.
Please try to download it again on the Desktop and please make sure that the download completes successfully(without the .crdownload extension).
Regards,
Romit SInha

When I close firefox (in windows 7), it doesn't fully close, I have to go to the task manager and end process before I can open it again.

Every time I try to open firefox, a window pops up saying that another instance of firefox is already running (still open from the last time firefox was open) and that another instance can't be opened. To solve this, I have to go into task manager and end the firefox (32) process. I think this started happening after getting the newest version of firefox a couple weeks ago. My computer is a month-old thinkpad with windows 7 64 bit.

see item #32 closing firefox properly
* http://dmcritchie.mvps.org/firefox/firefox-problems.htm#close_firefox

When I launch Firefox several windows open and several Sign In requests. How can I resolve?

This has been happening for the past 3-4 days. I click to open Firefox and anywhere from 3 to 6 separate windows open along with 1-2 sign in windows and a web address that I was on 2 days ago. If I close them all, and just leave one open, when I try to access any website, all the windows open again.

Re-setting the Home page did the trick (I think). by clicking on the icon to the left of the Home page and dragging it to the Home icon as you indicated. Would never have thought of that one. So thanks a lot. An annoying problem has been resolved!!!

I have Mac 10.5.8, when I click firefox install window comes up?

I have emac 10.5.8, firefox is installed and will come up but when I click the icon an install window comes up and I have to close it each time before going into firefox. What can I do?
== This happened ==
Every time Firefox opened
== Right after install

I have the same problem.
Running OS X version 10.5.8 with Firefox 3.6
Once the install window comes up firefox works fine, but it lags the start up time. I'm tired of having the install window chilling on my desktop.

When i installed firefox on windows my page does not look like the set up in the help support set up section

when installed the page doesnt look like one that helps you in setup support - i dont have orange firefox tab upper left nothing is the same and very irritating trying to follow your suggestions nothing works

Also make sure that you do not run Firefox in full screen mode (press F11 or Fn + F11 to toggle; Mac: Command+Shift+F).
*https://support.mozilla.org/kb/how-to-use-full-screen
Make sure that toolbars like the "Navigation Toolbar" and the "Bookmarks Toolbar" are visible.
*Firefox menu button > Options
*View > Toolbars (press F10 to display the hidden Menu bar)
*Right-click empty toolbar area
Use Toolbar Layout (Customize) to open the Customize window and set which toolbar items to display.
*check that "Bookmarks Toolbar items" is on the Bookmarks Toolbar
*if "Bookmarks Toolbar items" is not on the Bookmarks Toolbar then drag it back from the toolbar palette into the Customize window to the Bookmarks Toolbar
*if missing items are in the toolbar palette then drag them back from the Customize window on the toolbar
*if you do not see an item on a toolbar and in the toolbar palette then click the "Restore Default Set" button to restore the default toolbar setup
See also:
You can check for problems caused by a corrupted localstore.rdf file.
*http://kb.mozillazine.org/Corrupt_localstore.rdf

When I close Firefox, the window closes but the Firefox.exe process and Plug-in Container remain running in the background and have to be shut down using Windows Task Manager.

This happens frequently. Something in Firefox continues to run even when the program is closed. The process has to be stopped before I can open Firefox again.

Thanks. Closing with File/Exit instead of the X closes Firefox properly. AT LAST! A solution!

When i Download firefox for windows 7 64 bit it just gives me a blank unresponsive page. Nothing works only IE9 64 bit.

I have tried everything to fix this, reset every internet option i can think of, i uninstalled Firefox and reinstalled it and still just a blank white page that lets me do nothing. Just IE 9 64 bit works. I have ran avg anti-virus and then deleted avg anti- virus to try another virus program. I have a tech take over my computer for over and hour and he couldnt do it either. Well least i know IE 9 64 works and thats a step in the right direction since its been a week and i just found that i can use IE 9 64 bit today.

Nightly is a pre-release testing version of Firefox: bleeding edge and not necessarily stable. It is Firefox -- a rose by any other name, and all -- but it is buggy, as all testing software is (I'm using it right now). New Firefox versions are born from Nightly, so when a 64-bit version of Firefox is released, it will have come from Nightly development. Use it for general browsing and send feedback (Tools -> Options -> Advanced -> General) and you will be helping to beta test a new baby Firefox.

When I start Firefox using Windows 7 the screen is very small and I must hit Ctrl-+ to enlarge it.

I just switched from Windows XP to Windows 7. Now when I call up Foxfire the page is very small (about 1/4 size). I must click on Ctrl-+ several times to enlarge it. Is there any solution to avoid all this clicking?

Reset the page zoom on pages that cause problems: <b>View > Zoom > Reset</b> (Ctrl+0 (zero); Cmd+0 on Mac)
* http://kb.mozillazine.org/Zoom_text_of_web_pages

Before, when i closed Firefox with multiple tabs open, it prompted me and asked if I wanted to return to these tabs the next time. When i downloaded the new Firefox, i can't do that anymore. Is there an add-on to make that happen?

I recently updated Firefox on my desktop and laptop. Before, when i closed Firefox, a window would open and ask me if i wanted to return to the same group of URL location tabs the next time i opened Firefox.
Now it doesn't ask that, so i have to remember which sites i was using each time. Is there a way to return to the same group of URL locations each time I re-open Firefox?

For a summary of what to do to get the old behaviour back see this post from [https://support.mozilla.com/en-US/questions/804339#answer-158823 Helper 7677]

Windows glass turns off randomly. When I open a new window, the glass is working, but not on the old window.

When i start firefox, the Windows Glass (Aero) is on. Randomly during a browsing session, it will turn off and the glass will just turn into a single color with no transparency. If I open up other programs, or even a new window in firefox, the glass is still working for those windows. However the original firefox window remains opaque. What is happening? If it helps, I am running Windows 7 64 bit and Firefox.
== This happened ==
A few times a week
== I noticed it after the update to firefox 3.6.8

You can try http://kb.mozillazine.org/Corrupt_localstore.rdf

Firefox causes Windows 7 Device Manager to constantly refresh/reset

When I execute Firefox, my Windows 7 Device Manager begins to constantly reset/refresh.
This happens about every 10 seconds.
Even when I have disabled all extensions and add-ons and I have removed and reinstalled Firefox, the behavior still happens.
The behavior disappears if I (i) terminate Firefox, (ii) run Explorer or (iii) run Chrome.
Any thoughts?

Start '''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in Safe Mode]''' {web Link} by holding down the '''<Shift><br> ''(Mac Options)'' ''' key, and then starting Firefox. Is the problem still there?
Start your '''Computer''' in safe mode with networking. Then start Firefox.
Try '''Safe''' web sites. Is the problem still there?
'''[http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting The Computer In Safe Mode;<br>Free Online Encyclopedia]'''

Using Firefox 4.0 Beta 4. When I open a link in a new window, the web address does not show in the location bar. Why?

When I open a web page link in "a new window" the link opens, but the web page information does not appear in the location bar. It is blank. If I open the link in a new tab, there is ho problem.
Further, if a open a link from the tab without a location in a new tab on the same window and then go back to the original tab, the location bar fills with the web address.
Have done this starting in several locations, so it not location dependent.

That behaviour is likely top be caused by an add-on, and in your case the likely culprit is IE Tab 2, the various versions of IE Tab have caused problems with Firefox 4 beta including issues with the location bar not being updated.
You can test to see if IE Tab 2 is causing your problem by disabling it and then seeing if the location bar in a new window shows the address. If it is not that add-on causing the problem, see [[troubleshooting extensions and themes]].
For info, the IE Tab Plus add-on has been updated recently to improve compatibility with Firefox 4 beta, you may want to try that one instead. The latest version is available from http://coralietab.mozdev.org/installation.html

When i close firefox and want to use it later i get a warning saying cannot open firefox close it first this keeps happening all the time any ideas to solve this problem? i have 2 mchines one on xp and one on windows 7

i have 2 pcs one with xp and the other with windows 7 heres the problem
when i close firefox and say go back to it say in 10 mins i get a error message saying to close firefox before opening!!! but firefox window is closed but the processes still say its running in task manager so to correct this i have to end process on firefox. this seems to be happening now every time in the last few days i have upgraded firefox to the latest version. any ideas on how to solve this problem.

see if this helps you : [https://support.mozilla.org/en-US/kb/Firefox%20is%20already%20running%20but%20is%20not%20responding Firefox is already running but is not responding]
thank you
Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.

Hello..i use firefox 4 beta 05..my question is..why when i open let's say 6 tabs..my windows show that i have 6 instancies of firefox instead of one like it does with firefox 3.6? thanks

hello..i use firefox 4 beta 05..my question is..why when i open let's say 6 tabs..my windows show that i have 6 instancies of firefox instead of one like it does with firefox 3.6? thanks
maybe i am saying it wrong..when i press alt+tab there is only one firefox open..but in windows 7 in the taskbar..every tab open..appears as another window open

If you are referring to taskbar previews, you can turn them off by modifying a hidden preference.
# Type '''about:config''' into the location bar and press enter
# Accept the warning message that appears, you will be taken to a list of preferences
# In the filter box type '''previews'''
# Double-click on the preference browser.taskbar.previews.enable to change its value to '''false'''

When i open firefox, no window opens

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