Every time I try to open my browser I keep getting a message telling me that 'A copy of firefox is already open. Only one copy of Firefox can be open at a time'

I have already deleted all old downloads of firefox and reinstalled the latest update but i am still getting the same message. What can I do to fix this ?
Anyone who can help , please use basic language and explanations as I am no computer whizz
Thanks

Make sure that Firefox gets installed properly.
Open the Firefox disk image file and drag the Firefox program into the Applications folder on your hard drive.
You shouldn't double-click the Firefox application to run it from the disk image, but instead drag it out of the DMG folder.
*http://kb.mozillazine.org/Installing_Firefox#Mac_OS_X
*https://support.mozilla.org/kb/Installing+Firefox+on+Mac

Similar Messages

  • I recently installed Adobe Flash Player 11 ActiveX--11.4.402.265 and when I open My Mozilla Firefox browser I keep getting this message flashing on my screen: '

    I recently installed Adobe Flash Player 11 ActiveX--11.4.402.265 and when I open My Mozilla Firefox browser I keep getting this message flashing on my screen: 'Adobe Flash Player 11.4 r402 has stopped working" and then "Windows is checking for a solution"
    This flashes a few times then usually stops but not always.
    It happens every time I try to open a new page.
    I fixed this problem by uninstalling Adobe Flash Player 11 and installing Adobe Flash Player 10.3. However, now my IE browser wants me to install Adobe Flash Player 11 again. Although I don't use my IE browser frequently, I DO have to use it sometimes. Will there be an update to Firefox 15.0 to correct this issue?

    Tylerdowner:
    Thank you, your solution worked great.
    mohenryj

  • When I try to update my apps, I keep getting the message that there is a problem with my billing information even though this is the billing information I have always used in purchasing my apps. What do I do?

    When I try to update my apps, I keep getting the message that there is a problem with my billing information even though this is the billing information I have always used in purchasing my apps. What do I do?

    You probably need to confirm  the security code of your CC.  Log into your account an input this, even if it's already there.

  • When I try to use my itunes I keep get the message "msvcr80.dll missing. reinstall program" I have reinstalled itunes several times with no change.

    Everytime I try to start my itunes app I get the message " msvcr80.dll missing. try reinstalling the program" I have reistalled itunes several times and this keeps coming up. The msvcr80.dll is on my system. What am I missing? This has only been going on since the last itunes update.

    Solving the iTunes Installation Problems in Windows
    1. Apple has posted their solution here: iTunes 11.1.4 for Windows- Unable to install or open - MSVCR80 issue.
    2. If the Apple article does not fully resolve the problem for you, then try Troubleshooting issues with iTunes for Windows updates - MSVCR80.

  • When i try to upgrade to ff8 i keeping getting a message to restart my computer which i have done 5 or 6 times and that message keeps coming up can u help please. Also when i go to remove the download i get the message to restart computer in English

    cannot open Fire fox i keep getting a message to restart my Computer but that does not do anything i still cannot open Fire fox this has happened about 5 0r 6 times

    Try to run the Firefox program once as Administrator (right-click: Run as Administrator).
    If that doesn't solve the problem then remove the Firefox program folder to do a clean reinstall.
    Download a fresh Firefox copy and save the file to the desktop.
    * Firefox 8.0.x: http://www.mozilla.com/en-US/firefox/all.html
    Uninstall your current Firefox version if possible.
    *Do NOT remove personal data when you uninstall the current version or you lose your bookmarks and other data in the profile folder.
    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.
    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

  • HT1386 I have changed computers and when I try to sync my apps, I keep getting a message saying that the computer is not authorised to sync the apps even though I have authorised the computer.

    Hi, I have just set up iTunes in my new computer and have 'synced' my iphone, however, my apps have not synced, I keep getting a message saying that this computer is not authorised to sync the apps even though I have authorised it.  I don't know if the issue is the fact that I had to set up a new apple ID?  Any suggestions would be appreciated. Thanks

    The "The connection was reset" error message can be caused by a bug fix for the BEAST (Browser Exploit Against SSL/TLS) attack that the server doesn't handle.
    *[[/questions/918127]]
    *[[/questions/918028]]

  • When I try to load free apps I keep getting error message 1004.  What does this mean.

    When I try to load free apps on my ipad I keep getting error message 1004.  What does this mean?

    I have never experienced this issue, but if you can't find anything that helps on the site that Philly suggested, I have read that this has worked for that error code.
    Go to Settings>Safari>Clear History, Cookies and Data or Cache. Restart the iPad. Restart the iPad by holding down on the sleep button until the red slider appears and then slide to shut off. To power up hold the sleep button until the Apple logo appears and let go of the button.

  • Every time I try to access any website, I keep getting this message: Revocation information for the security certificate for this site is not available. Do you want to proceed? How do I fix this?

    This is driving me nuts !! I keep getting that message every time I try to access a website. It asks me to download the certificate, which I do, but the message still pops up. Any suggestions?

    no, I will be using wi-fi to connect. This usually happens whenever I try to back up

  • I can open my new InDesign files by going up through the menu and opening that way, but when I try to just double click on an InDesign file I get error messages telling me that certain plugins aren't available.

    I upgraded my Mac a few weeks ago to 10.10.2 Yosemite, and I joined the Adobe cloud so I could get access to all the new apps. I read a blurb somewhere about converting older InDesign files to the new CC version I'd have to open the old files in my old InDesign CS3, export to an ins file, then open that file in the new InDesign CC, then export it again to an idml file, then open that file and you shouldn't have any of the usual conversion problems. For the first few files I had to convert, it worked just fine. Now for some reason, whenever I try to open one of these converted files just by double-clicking on the file itself, I get an error message that says, "The document ____ uses one or more plug-ins which are currently not available on your system. Do you want to open anyway?" When I click OK, then I get another error message that says, "Cannot open ____. Please upgrade your plug-ins to their latest versions, or upgrade to the latest version of Adobe InDesign." I thought this CC version of InDesign was the newest. Can somebody please tell me what gives with this? Any help will be very much appreciated.

    Did you reinstall CS3 after CC?
    For that matter, doing an in-place upgrade on the OS is always a gamble with Adobe programs. Reinstalling all the versions you need, in order, would probably solve your problem.
    And you shouldn't need to save as IDML after opening the .inx in CC.

  • When I try to download Adobe Presenter, I keep getting a message that says "error 413, header to large." What do I need to do to successfully download this product?

    How do I download Adobe Presenter when I keep getting error 413 - header too large?

    Make sure you have cookies enabled and clear your cache.  If it continues to fail try using a different browser.

  • I'm stuck I've just been charged for the same purchase twice but when I go to report it, I get a message telling me that I can't connect to iTunes!;( I'm totally confused because I've done everything I could think of to try! Can u help

    Please can you help me, I'm stuck!
    It all start when I purchased some coins for the Facebook game bejewelled & it's gone down hill from there.
    First after putting my password I got a message telling me my purchase was unsuccessfull then was prompted to put my password in again which I did & a message flashed up for a second saying something about my purchase being successful but not downloaded but soon after my coins appeared so I didn't think much more of that. UNTIL I got emails showing my purchase, which would fine as nothing is free but I realised I had been invoice twice for the same purchase, so I panick think how can I can my money back, so I clicked on the report a problem highlight in blue & I'm transferred to iTunes, after a short while a message pops up telling me I can't connect to iTunes.
    I've tried lots of different ways to fix this but had no joy, I can't seem to get onto iTunes to get any suport either but it's still letting purchase stuff & look & purchase music & apps though iTunes, I've reset my device & also plug into my laptop, checked all my settings on the device etc:-
    I've ran out of ideas, CAN YOU HELP!;)
    Thanks

    Place the iOS device in Recovery Mode and then connect to your computer and restore via iTunes. The iPod will be erased.
    iOS: Forgot passcode or device disabled
    If recovery mode does not work try DFU mode.                        
    How to put iPod touch / iPhone into DFU mode « Karthik's scribblings        
    For how to restore:                                                             
    iTunes: Restoring iOS software
    To restore from backup see:
    iOS: Back up and restore your iOS device with iCloud or iTunes       
    If you restore from iCloud backup the apps will be automatically downloaded. If you restore from iTunes backup the apps and music have to be in the iTunes library since synced media like apps and music are not included in the backup of the iOS device that iTunes makes.
    You can redownload most iTunes purchases by:           
    Downloading past purchases from the App Store, iBookstore, and iTunes Store        
    If problem what happens or does not happen and when in the instructions? When you successfully get the iPod in recovery mode and connect to computer iTunes should say it found an iPod in recovery mode.

  • I keep getting the message on iTunes that my Shuffle (which is current on updates) needs to be restored.  It is showing up in devices, but when I try to add songs to it, I don't get the little progress bar showing me that the song is being added. ***?

    I updated to the new iTunes last week.  Today I plugged in my 4th generation Shuffle to add some new songs.  The shuffle appears in Devices, but when I try to add songs, I'm not getting the progress bar at the top of the screen, so I'm assuming the song isn't being added.  I tried ejecting the Shuffle and plugging it in again, and I got a message that my iPod needed to be restored before it could be used with iTunes -- even though the screen also said the Shuffle is up to date on the software. I finally gave in and restored it, but I continue to get the same message.  When I eject the iPod and try to play it now, I'm getting nothing, and when it is connected to the usb port, the orange light is continually flashing.  I've been trying to figure this out for about 3 hours now, so if anyone could help me, I'd be eternally grateful!

    The 1st and 2nd gen shuffles do not have an automatic syncing mode, like later shuffles and the "big" iPods.  It is maintained manually (or by using the Autofill feature).
    If the iTunes sidebar (along left side of window) is hidden, from the menu bar, under View, select Show Sidebar.  The shuffle appears in the sidebar, under DEVICES, when connected.
    To add songs to the shuffle...  Show a list of songs in the iTunes window.  For example, you can select Music under LIBRARY (in the sidebar) to show your complete iTunes music library list.  Select a song and drag it to the shuffle in the sidebar.  You can do this with more than one song selected.  Alternately, select the song(s), right-click the selection, and choose the command to Add to Playlist -> [name of iPod].
    To remove songs from the shuffle...  Select the shuffle in the sidebar.  To the right, it's Settings screen is shown.  Toward the top, where it says Settings, click on On This iPod (to the right).  The list of songs on the shuffle is shown below.  Select the song you want to remove and press Delete on the keyboard.  You can do this with more than one song selected. 
    NOTE:  At the bottom of the shuffle's list of songs, there are controls for the Autofill feature.  You can also use Autofill to fill your shuffle from your music library or from a specific playlist.

  • When I try and open Illustrator CS4 on my 2008 macbook running Mavericks I get a message telling me that Licensing for this product has stopped working' Error 150:30

    Has anyone encountered this error message?

    According to Google a couple of folks had this error.
    For instance here:
    Re: License is no longer working Error - 150:30 - CS4

  • Why when i try to agree to the iCloud terms i get a message telling me that "unable to connect to server"?

    Why am I getting an "unable to connect to server" when trying to agree to iCloud terms?

    Go to http://www.apple.com/itunes/download then download and install the latest version.

  • I have Safari 5.1.10 Browser and keep getting notices to upgrade from my bank.  What is the best upgrade?

    I have Safari 5.1.10 Browser and keep getting notices to upgrade from my bank.  What is the best upgrade?

    Upgrading to Yosemite
    You can upgrade to Yosemite from Lion or directly from Snow Leopard. Yosemite can be downloaded from the Mac App Store for FREE.
    Upgrading to Yosemite
    To upgrade to Yosemite you must have Snow Leopard 10.6.8 or Lion installed. Download Yosemite from the App Store. Sign in using your Apple ID. Yosemite is free. The file is quite large, over 5 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.
        OS X Mavericks/Yosemite- System Requirements
          Macs that can be upgraded to OS X Yosemite
             1. iMac (Mid 2007 or newer) - Model Identifier 7,1 or later
             2. MacBook (Late 2008 Aluminum, or Early 2009 or newer) - Model Identifier 5,1 or later
             3. MacBook Pro (Mid/Late 2007 or newer) - Model Identifier 3,1 or later
             4. MacBook Air (Late 2008 or newer) - Model Identifier 2,1 or later
             5. Mac mini (Early 2009 or newer) - Model Identifier 3,1 or later
             6. Mac Pro (Early 2008 or newer) - Model Identifier 3,1 or later
             7. Xserve (Early 2009) - Model Identifier 3,1 or later
    To find the model identifier open System Profiler in the Utilities folder. It's displayed in the panel on the right.
         Are my applications compatible?
             See App Compatibility Table - RoaringApps.
    Upgrading to Lion
    If your computer does not meet the requirements to install Mavericks, it may still meet the requirements to install Lion.
    You can purchase Lion at the Online Apple Store. The cost is $19.99 (as it was before) plus tax.  It's a download. You will get an email containing a redemption code that you then use at the Mac App Store to download Lion. Save a copy of that installer to your Downloads folder because the installer deletes itself at the end of the installation.
         Lion System Requirements
           1. Mac computer with an Intel Core 2 Duo, Core i3, Core i5, Core i7,
               or Xeon processor
           2. 2GB of memory
           3. OS X v10.6.6 or later (v10.6.8 recommended)
           4. 7GB of available space
           5. Some features require an Apple ID; terms apply.

Maybe you are looking for