Firefox will not open with attempted launch

I have uninstalled firefox many times and used an outside un-installer.

A possible cause is security software (firewall,anti-virus) that 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 internet 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
*http://kb.mozillazine.org/Browser_will_not_start_up

Similar Messages

  • Firefox will not open after attempting to upgrade to v5, sys restore didn't help

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    Hi lwhealon
    try from Start > Run > and type to check 1 of :
    firefox -safe-mode
    "C:\Program Files\Mozilla Firefox\firefox.exe" -safe-mode '''or'''
    "C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -safe-mode
    (to enable the Run box in win 7 see: [http://blogs.msdn.com/b/tims/archive/2006/09/18/windows-vista-secret-3-bringing-back-start-run.aspx enable Run box win 7] )
    also check if [http://kb.mozillazine.org/Firewalls Firewall] or/and other security software blocking firefox start (like ad-blocker, web-accelerator etc).
    [http://kb.mozillazine.org/Kill_application With Firefox completely closed] (probably because you can not start it), open the [http://kb.mozillazine.org/Installation_directory application folder] (by default, C:\Program Files\Mozilla Firefox on Windows) rename firefox.exe to firefox1.exe, then double-click firefox1.exe. If Firefox runs without problems, it could indicate that your firewall is blocking Firefox.
    good luck

  • Firefox will not open with the new webroot sofeware

    I installed webroot version 7.0.4.102
    Now my firefox will not load, and ones it starts to load it cannot be closed.

    @glennhaste, the public pages I visited seem identical in IE8 and Fx10, but you may be referring to a part of the site that requires logging in (impossible for non-customers to view).
    Since the problem is so recent, can you recall any changes you made in Firefox, or are you aware of any changes your CU made on its site?
    When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site.
    1. Clear Firefox's Cache
    Firefox > Preferences > Options > Advanced
    On the Network mini-tab > Offline Storage : "Clear Now"
    2. If needed, delete the site's cookies here
    While viewing a page on the site, "right-click" and choose View Page Info > Security > "View Cookies" (''Sorry, I don't know how you right-click on a Mac'')
    Then try reloading the page. Does that help?

  • Firefox will not open with my previous session

    [I am posting this question using IE.]
    Last night when I quit Firefox I closed the browser without noticing an ad in a new browser window had opened. Thus, my last browser open was the ad page.
    So when I open the browser now, it tells me "Firefox is having trouble recovering your windows and tabs. This is usually caused by a recently opened web page." The only option is to restore "Advertisement".
    I have done a complete search on my computer. The only other sessionstore files (sessionstore-nn.js) are located in a differently named profile folder dating back to May, 2012.
    In my current profile folder I have sessionstore.js and sessionstore.bak.
    The sessionstore.js file represents Firefox opening with NO old tabs; it is 1 KB in size.
    The sessionstore.bak file represents my "last" browsing session; it is 11,952 KB.
    I close Firefox (Mozilla home page) by clicking on File, Exit.
    In the Profile folder I rename sessionstore.js (1 KB) to sessionstore.js.bak. In other attempts I have rename it sessionstore.tmp, sessionstore.old, etc.
    I then rename sessionstore.bak (11,952 KB) to sessionstore.js.
    When I restart Firefox (V 24.0) I get the same error message, "Firefox is having trouble recovering your windows and tabs. This is usually caused by a recently opened web page." The only option is to restore "Advertisement".
    Restore Previous Session is grayed out; there is no button on the home page to restore a previous session.
    So, is the sessionstore.bak (11,952 KB) *really* just the advertising page? If so, where is the sessionstore file that contains my actual previous browsing session? (More tabs that you can imagine.)
    What should I try next to get Firefox to open with my "lost" browsing session?

    When I click on Tools - Options - Privacy, Firefox will Remember History.
    I do not see an option to 'Clear History when Firefox closes - Exceptions'.
    There i* a line below History which states: 'You may want to *clear your recent history* or *remove individual cookies*'. The text enclosed within the asterisks indicates a link.
    I have not clicked on 'clear your recent history'. Please see the attached image.

  • In last 2 days, firefox will not open with Onspeed enabled

    In last 2 days Firefox 3.6.6 reports that it cannot find its server, when I have Onspeed enabled. If I disable Onspeed, no problem. I have not messed with either recently. I use Windows Vista and have Adobe and Java plugins installed.
    == This happened ==
    Every time Firefox opened
    == I tried to start Firefox 2 days ago.

    After reading several posts in the Support Forum I tried a solution. I deleted the "sessionstore-backups" folder.
    Please try this: click the menu button ≡ and then click help ? > troubleshooting information > profile folder - "show folder". Then a new window will open up. In this window look out for a folder named "sessionstore-backups", delete this folder and restart firefox afterwards.
    The problem was resolved.

  • Firefox will not open with previous session. Option automatically resets to default.

    I set options to: "Show my windows and tabs from last time". But, when I start Firefox, it does not save this option and reverts to the default option. I've tired disabling add-ons and refreshing Firefox, but the problem still occurs.
    Troubleshoot report:
    Application Basics
    Name: Firefox
    Version: 36.0
    User Agent: Mozilla/5.0 (Windows NT 6.0; rv:36.0) Gecko/20100101 Firefox/36.0
    Multiprocess Windows: 0/1
    Crash Reports for the Last 3 Days
    Report ID: bp-fb4e0890-4a04-4323-ab6d-9b0ef2150304
    Submitted: 19 hours ago
    All Crash Reports
    Extensions
    Name: Google Translator for Firefox
    Version: 2.1.0.3m
    Enabled: true
    ID: [email protected]
    Name: Norton Toolbar
    Version: 2014.7.10.26
    Enabled: true
    ID: {2D3F3651-74B9-4795-BDEC-6DA2F431CB62}
    Name: Microsoft .NET Framework Assistant
    Version: 0.0.0
    Enabled: false
    ID: {20a82645-c095-46ed-80e3-08825760534b}
    Graphics
    Adapter Description: NVIDIA GeForce GTX 260
    Adapter Drivers: nvd3dum nvwgf2um,nvwgf2um
    Adapter RAM: 896
    Device ID: 0x05e2
    Direct2D Enabled: true
    DirectWrite Enabled: true (7.0.6002.23200)
    Driver Date: 7-2-2014
    Driver Version: 9.18.13.4052
    GPU #2 Active: false
    GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC)
    Subsys ID: 12603842
    Vendor ID: 0x10de
    WebGL Renderer: Google Inc. -- ANGLE (NVIDIA GeForce GTX 260 Direct3D9Ex vs_3_0 ps_3_0)
    windowLayerManagerRemote: true
    AzureCanvasBackend: direct2d
    AzureContentBackend: direct2d
    AzureFallbackCanvasBackend: cairo
    AzureSkiaAccelerated: 0
    Important Modified Preferences
    browser.cache.disk.capacity: 358400
    browser.cache.disk.smart_size.first_run: false
    browser.cache.frecency_experiment: 4
    browser.places.smartBookmarksVersion: 7
    browser.sessionstore.upgradeBackup.latestBuildID: 20150222232811
    browser.startup.homepage: http://my.myway.com/index.jsp?speedbarconfigchanged
    browser.startup.homepage_override.buildID: 20150222232811
    browser.startup.homepage_override.mstone: 36.0
    extensions.lastAppVersion: 36.0
    gfx.direct3d.last_used_feature_level_idx: 1
    media.gmp-gmpopenh264.lastUpdate: 1425537886
    media.gmp-gmpopenh264.version: 1.3
    media.gmp-manager.lastCheck: 1425537884
    network.cookie.prefsMigrated: true
    places.history.expiration.transient_current_max_pages: 80469
    plugin.disable_full_page_plugin_for_types: application/pdf
    plugin.importedState: true
    privacy.sanitize.migrateFx3Prefs: true
    Important Locked Preferences
    JavaScript
    Incremental GC: true
    Accessibility
    Activated: false
    Prevent Accessibility: 0
    Library Versions
    NSPR
    Expected minimum version: 4.10.7
    Version in use: 4.10.7
    NSS
    Expected minimum version: 3.17.4 Basic ECC
    Version in use: 3.17.4 Basic ECC
    NSSSMIME
    Expected minimum version: 3.17.4 Basic ECC
    Version in use: 3.17.4 Basic ECC
    NSSSSL
    Expected minimum version: 3.17.4 Basic ECC
    Version in use: 3.17.4 Basic ECC
    NSSUTIL
    Expected minimum version: 3.17.4
    Version in use: 3.17.4
    Experimental Features
    ---------------------

    After reading several posts in the Support Forum I tried a solution. I deleted the "sessionstore-backups" folder.
    Please try this: click the menu button ≡ and then click help ? > troubleshooting information > profile folder - "show folder". Then a new window will open up. In this window look out for a folder named "sessionstore-backups", delete this folder and restart firefox afterwards.
    The problem was resolved.

  • Firefox will not open unless I run it in compatibility mode (Windows XP SP 3), run it as an administrator, or launch it immediately after a reinstall (the reinstall thing only works once.) How do I fix this?

    This morning, Firefox crashed. After this, when I click the Firefox icon, the hourglass appears and then nothing happens. Firefox does briefly appear in the task manager when I do this.
    I tried rebooting. I tried reinstalling multiple times. (Firefox will run when I select "Launch Firefox" from the installer. Then the problem occurs again.) I tried safe mode. I have found that Firefox will work if I select Windows XP compatibility mode from the icon properties menu or if I run the program as an administrator. When I do this, Windows asks me if I want a program to be able to make changes to my computer.
    I have noticed that a Windows Error Report is being generated each time Firefox will not open.

    A possible cause is security software (firewall,anti-virus) that 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 internet 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

  • Firefox will not open,tried running profile manager but I receive a small window with the word :dialog" in it.

    Firefox will not open.Tried uninstalling and reinstalling program without any success.
    Tried running profile manager,but a small screen shows up with the word "dialod" in it.
    Any assistance appreciated.
    == User Agent ==
    Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; GTB0.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.2; .NET4.0C; Tablet PC 2.0)

    Can you provide us a screenshot?
    Vista/7
    Go to Start and type in Snipping Tool then provide a screenshot ,save it, and upload it to any of these file uploading websites.
    [http://www.imageshack.us ImageShack]
    [www.mediafire.com MediaFire]
    [www.kimag.es Kimages]
    XP
    Press '''FN + PRT SC''' on your keyboard to take a screenshot and Press '''CTRL + V''' in Paint to paste it and save it and upload it.

  • I was told I had to upgrade Firefox to 4.0, downloaded the dmg, launched it and now Firefox will not open at all.

    I was told I had to upgrade Firefox to 4.0, downloaded the dmg, launched it and now Firefox will not open at all. It tells me "The operation can't be completed because you don't have permission to access some of the items." Also, that "Firefox cannot be opened because of a problem." And it give a bunch of code. This is my main browser. What is happening here? My OS X is 10.6.7. Has this caused a problem?

    If you right-click on your Photoshope.exe, select Properties, there should be a Compatibility tab. There you can select Windows XP, Windows 2000, Winows 98 or 95. One of these should allow you to open Photoshop 6, unless you mean CS6.

  • Verity Credit Union site will not open with the new Firefox. How can I get the old Firefox back?

    I want old Firefox back. My credit union, Verity, will not open with the new version of Firefox I have downloaded.

    @glennhaste, the public pages I visited seem identical in IE8 and Fx10, but you may be referring to a part of the site that requires logging in (impossible for non-customers to view).
    Since the problem is so recent, can you recall any changes you made in Firefox, or are you aware of any changes your CU made on its site?
    When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site.
    1. Clear Firefox's Cache
    Firefox > Preferences > Options > Advanced
    On the Network mini-tab > Offline Storage : "Clear Now"
    2. If needed, delete the site's cookies here
    While viewing a page on the site, "right-click" and choose View Page Info > Security > "View Cookies" (''Sorry, I don't know how you right-click on a Mac'')
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  • Whenever I double click on any htm or html document it will not open with firefox it gives a message window saying "Windows can not file path please type correctly" (not extact these words)

    I installed new version 4. Whenever I double click on any htm or html document it will not open with firefox it gives a message window saying "Windows can not file path please type correctly" (not extact these words) .. It was working when old firefox was there..

    Phillipp,
    I tried it again using "save link as", and this time it actually worked! I just now downloaded several more using the "save link as" option, and it works perfectly. Thanks. Problem solved.
    Littleberry

  • I downloaded Firefox 4 and tried to launch it. The message said that Firefox will not work with this version of Mac OX. Please advise.

    I downloaded Firefox 4 and installed it. When I tried to launch it, a message came up saying that Firefox will not work with this version of Mac OSX. Now I have no Firefox. How can I get Firefox 3.6 back on my Mac? How can I make Firefox 4.0 work? Please advise.

    Thanks for the reply so quickly! Is the tenfourfox going to be be just as safe and as high of quality as the Firefox 4? Also since Mozilla's website says, "Firefox 3.6.x will be maintained with security and stability updates for a short amount of time. All users are strongly encouraged to upgrade to Firefox 4" does that mean if I go back to 3.6 there will be security and stability issues after a "short amount of time"?

  • Firefox will not open. Process runs, but browser window will not open.

    I am unable to get the Firefox browser window to launch. The application will attempt to open, but the browser window will not appear. Task manager indicates that the process is running, it just will not launch the window. No amount of restarts or reboots will make a difference. The strange thing about this is that Firefox has never run. This is a new computer and this issue has been a problem since it was first plugged in.
    Troubleshooting steps attempted thus far:
    1) Attempted to open in safe mode - will not open
    2) Attempted to run in administrator mode- will not open
    3) Completely uninstalled application, including profile info and reinstalled
    4) Uninstalled known conflicts - Skype 4 (do not have Norton)
    5) Even though issues since new, I ran a virus scan just in case-nothing
    6) Uninstalled Chrome which I installed after originally being unsuccesful at getting FF to install (I uninstalled it before I began all of these troubleshooting steps as I have heard of conflicts)
    I am now at a loss and willing to try any other steps that you guys can suggest.
    Computer is running Windows 7 pro 64 bit. Running McAffee virus software. There are three identical computers in my office, purchased at exactly the same time with the same configuration. Mine is the only one that will not run firefox. Sadness. Please help, pleeeease...

    Win 7 with iTunes installed - I was also having problems with that.
    "netsh winsock reset" at the command prompt resolved all issues and Firefox launched normally.
    Check to see if Winsock is corrupted. May prevent FF from communicating with the web and consequently fails to launch properly - for my situation was not a firewall or antivirus block!
    http://support.microsoft.com/kb/936211#LetMeFixItMyselfAlways
    Click Start, and in Start Search, type cmd.
    Right-click the cmd entry that appears in the search results, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password, or click Continue.
    At the command prompt, type the following, and then press ENTER:
    netsh winsock reset
    Then, you should see the following message:
    Successfully reset the Winsock Catalog. You must restart the computer in order to complete the reset.
    Restart the computer.
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  • Firefox will not open on my computer

    From sometime last night to today (11/18) Firefox will not open when I click on the shortcut link from my desktop. I've tried to add another profile by clicking on start/run/firefox.exe but that doesn't even work. What would be the next step?

    Do any error messages display when attempting to open Firefox?<br>
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    '''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).
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    #*'''Windows:'''
    #**C:\Program Files\Mozilla Firefox
    #**C:\Program Files (x86)\Mozilla Firefox
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    ##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 soon.

  • I have no navigation bar and firefox will not open in safe mode to reset to default config. Reinstalling doesn't work. Any help please.

    I have no navigation bar ever since I closed it to gain more space on the screen. It won't re-open. Firefox will not open in safe mode, but opens immediately in normal mode with the new improper config, so I cannot reset to default config. I erased Firefox and re-installed and it still opens with the same faulty config. Why does Firefox not give me the safe mode dialog box, why can I not re-open the nav bar, and how can I do these two things, please? Firefox is currently unusable for me without a nav bar and without access to the default settings in safe mode. I cannot research the extensions I'm running since I have no nav bar to go to Tools, Add-ons, Extensions.
    == This happened ==
    Every time Firefox opened
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    == User Agent ==
    Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; GTB6.4; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0)

    Hit the '''Alt''' key to show the Menu bar, then open View > Toolbars and select Menu bar and Navigation bar, so they have a check-mark.

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