Cannot open Firefox on Yosemite

Similar Questions

• Download Firefox 4 for my Mac OS10.5.8 and now cannot open Firefox.

  Download Firefox 4 for my Mac OS10.5.8 and now cannot open Firefox. The processor is 1.25 GHz Power PC G4 and 768 MB of DDR SDRAM memory. Is it possible to revert to a previous version that worked fine on my Mac?

  Firefox 4 requires at least OS X 10.5 and an Intel Mac. There is a third part of Firefox 4 version that works under OS X 10.4/10.5 and PPC Macs, for details, see http://www.floodgap.com/software/tenfourfox

  If you prefer, you can get the latest version of Firefox 3.6 http://www.mozilla.com/en-US/firefox/all-older.html

• Cannot open Firefox. Platform error version 1.9.2.15 is not compatible with minVersion > = 1.9.2.16 maxVersion < = 1.9.2.16

  Received an update yesterday that disabled Norton before installing itself. Now cannot open Firefox. Get the error message.

  This problem can occur if the update was not able to update all the files.

  Do a clean install (re)-:

  • Download a new copy of Firefox and save the file to the desktop.
  • Firefox 3.6.x: http://www.mozilla.com/en-US/firefox/all-older.html
  • Firefox 4.0: http://www.mozilla.com/firefox/all.html
  • Uninstall your current version of Firefox and remove the Firefox program folder before installing this copy of the Firefox installer.
  • Do not erase personal data if you uninstall the current version.
  • It is important to remove the Firefox program folder to delete all the files and make sure that there is no problem with the files that were the remains after uninstallation.

  Your bookmarks and other profile data is stored elsewhere (not in the Firefox program folder) and will not be affected by a relocation, but make sure that you do not select delete data of a personal nature if you uninstall Firefox.

• Cannot open firefox, get cannot open XPCOM. Impossible to open IE. Cannot type anything in the address to Fiefox or IE line. What can I do?

  I ask this in the name of a friend. She has a Toshiba laptop, windows 7. It is not computer. She used her phone OK yesterday, playing a Facebook game (played several times before) and everything was OK.
  Today she when she tried to access Firefox got 'cannot open XPCOM.
  She can not open IE either.
  She cannot type anything in the line of address for Firefox or IE

  You will need to use another computer if your computer do not have access to the internet.
  You can download Firefox for it and save the file to a USB key.

  Try this:

  • Download the installer of Firefox and save the file to the desktop
    https://www.Mozilla.org/en-us/Firefox/all/

  Save the full Firefox installation program on a USB

• Cannot open Firefox 16.0.2

  Firefox worked fine until I updated to Firefox 16.0.2 and now cannot open the program at all. When I double click on the Firefox icon or click on 'Open' I get the circle for about 10 seconds, it will immediately and then the program does not open. Anyone have this problem; found a fix?

  I saw a boot scan Avast Anti-virus, run Malwarebytes (not shown of bugs) and Fix - it to fix registry errors and defragment. I also checked my list of programs of ZoneAlarm firewall and makes sure that Mozilla is in the zone of confidence. I uninstalled and reinstalled Firefox after doing the scans.

  Internet Explorer and Google Chrome work fine, but I prefer to use Firefox.

  My computer is a HP 64 bit running Windows 7.

  Any help will be greatly appreciated.

  Thank you

  You cannot delete the folder from the Firefox program as well?

  • (32-bit Windows) C:\Program Files\Mozilla Firefox\
  • (Windows 64 bit) C:\Program Files (x 86) \Mozilla Firefox\

  Try to start the computer in safe mode Windows with network support (on the startup screen, press F8) as a test to see if it works.

• Cannot open Firefox. It is used to open a Web site that I own is no longer.

  I have the header of Firefox, but I get a "page not found" error I want to get this old information on Firefox.

  Looks like you need to set a different Home Page, the page that appears when you open Firefox.

  See - How to set the home page

• Cannot open firefox

  When I open firefox in normal mode and safe the crash reporter open an ask restart me firefox and whenever I click on restart firefox, I got another delay of the accident.
  Crash ID: bp-9e7de36c-3e17-42f2-9722-cb2892130717

  Try the pref gfx.content.azure.enabled set to false or if this does not help disable Direct2D by setting the pref gfx.direct2d.disabled true on the subject: config page and leave hardware acceleration enabled otherwise.

  This way you still have the advantage of hardware acceleration, but can not suffer rendering problems.

  Alternatively, you can try to uninstall the update of Windows KB2670838 if you have this update.

  • http://support.Microsoft.com/kb/2670838

  Try disabling hardware acceleration in Firefox.

  • Tools > Options > advanced > General > Browsing: "use hardware acceleration when available.
  • https://support.Mozilla.org/KB/troubleshooting+extensions+and+themes

• Firefox4Life78: cannot open firefox

  Hi, spoke with 3 technicians today and not found any solution to the problem. I even went as far as buying the Malwareby Anti_malware and found NO problem. Again, I can not open firefox by clicking on the icon. It has been uninstalled and reinstalled.

  Please email me if there is a solution

  Operating system

  Vista

  COR - el has already given the path to the file (I pronounced cor - el noticed you are on Vista and it gave the correct path as on Windows XP;)

  C:\Users\USERNAME\AppData\Roaming\Mozilla\Firefox

  Now, download the profiles.ini file (if there is none, create a new text document and rename profiles.ini), open it with Notepad and put in lines

  [[General]
  StartWithLastProfile = 1

  [[Profile0]
  Name = default
  IsRelative = 1
  Path = Profiles / zft4mn0r.default
  Default = 1

  Create folders

  C:\Users\USERNAME\AppData\Roaming\Mozilla\Firefox\Profiles

  and

  C:\Users\USERNAME\AppData\Roaming\Mozilla\Firefox\Profiles\zft4mn0r.default

  Now try running Firefox in Mode safe:

  There should be a shortcut:
  Start-> programs-> Mozilla Firefox-> Mozilla Firefox(Safe Mode)

  If this shortcut is missing, you can start safe mode by clicking on 'Search' and enter,
  one of them:

         * firefox -safe-mode
         * "C:\Program Files\Mozilla Firefox\firefox.exe" -safe-mode
  

  Anything help?

  Well... Trying to install a portable Firefox somewhere on the computer. by definition of laptop, it should work without any problems.
  http://PortableApps.com/apps/Internet/firefox_portable

  This is a bug.

• Cannot open Firefox 19.0 to install after the download

  I'm currently under Firefox ESR 17.0.3. It cannot automatically update the latest versions and tells me to do it manually, but that no longer works. After d/l 19.0.1 and 19.0.2, all two setup .exe liquidation timing after opening almost complete, saying that "access is denied zip 7. I will not delete my current version without lifting the update and running. What is going on???

  Please make sure that you are the administrator of the computer, that no firewall blocking access to it and try a restart of the pc.

• Cannot open "Firefox.app" because the identity of the sponsor cannot be confirmed: recommended solutions don't work... still can't open the download. Help?

  I tried the recommended two solutions to replace but none works. Firefox was slowly turning last night so I decided to update it. Did not help. Downloaded again, but now can't access it at all. I'm on a Mac using 10.9.5.

  If he has problems with the update or with the permissions then best is to download the full version and trash the version currently installed to do a fresh install of the new version.

  Download a new copy of the Firefox application and save the file to disk on the desktop image

  • Firefox 41.0.1: https://www.mozilla.org/en-US/firefox/all/
  • Basket of the current application of Firefox (open the Applications folder in Finder and drag the Firefox application to the trash) to do a cleanup (re) install
  • Install the new version you downloaded
  • https://support.Mozilla.org/KB/installing+Firefox+on+Mac

  Your personal data are stored in the Firefox profile folder, so you will not lose personal data as favorites when you uninstall and (re) install or update Firefox.

  • http://KB.mozillazine.org/Profile_folder_-_Firefox

• Cannot open Firefox even after deleting all files and profiles of school boards.

  My computer auto-installé the new Firefox version 40.0.2 (and later 40.0.3) and the browser does not open. It worked and I have not received any error message. I tried every fix I can find here, and even manually, I deleted all of my profiles, folders, program files, uninstalled, reinstalled, restarted my computer, and it still not open. I click on the Firefox button in my bar tasks, the charging symbol goes for a few seconds, then more nothing. Firefox opens and runs without any problems on other computer on computer accounts. I even copied the files of Firefox to the another computer account on which it runs and replaced all files on the computer account that Firefox does not on, rebooted and still nothing. I've been dealing with this issue for over 2 weeks now and am very frustrated because I spent hours trying everything I can find.

  This fix does not work either... tried previously and tried again. However I FINALLY got my Firefox to work on mine. I ended up finding a virus free online (ESET online scanner) scanner and do a full scan on my computer in order to remove anything that could cause a problem. I also went through all my computer programs and documents and cookies and temporary internet files and deleted everything which is not necessary or if it is no longer used. I thought it must be something else because Firefox has no problems with other users of the computer, and my original profile worked very well under other computer users when transferred manually. I think something was interfering with Firefox, which is why none of the fixes here worked because they targeted Firefox itself when it seems that it wasn't the problem.

  Thank you all for your comments!

• cannot open firefox; Profile showed lock-uninstalled and reinstalled, still cannot access

  Years, I used Firefox-suddlenly it won't open (can access the site with another browser). After spending hours reading forums, autonomies, etc. that I tried to look at the profile and he had a parental.lock shown in this topic. I am the administrator of the computer, so I know it's not computer partner. I tried to remove the lock (which I introduced myself to succeed in restarting the computer but when same could not access Firefox.

  Then, I uninstalled and reinstalled Firefox and get a message to close the previous version of Firefox. The update will not start.

  Can someone PLEASE, please help me?

  You run the update, you will need to stop the firefox.exe process through the Task Manager.

• Firefox application starts IE instead, cannot open Firefox anyway! Reinstalling does not work.

  Today I was browsing webistes of ordinary wallpaper and suddenly my Firefox is crushed, and IE open to its home page. After that, in every way I tried to run Firefox, I had IE open instead. I did a full virus scan, obtained of the Trojans is wiped out, but the problem continues. Tried to restart and finally reinstall FF, but none of it worked. Never seen anything like this, someone knows how to fix this?

  Thanks in advance

  Thanks for your awnser!

  That's the strange thing, FF has been installed and configured as the default Internet browser. Later, I downloaded Chrome and had the same problem. The solution I found was to restore my system to an earlier date, I think maybe a virus, who knows... But I got it working now!

• Cannot open Firefox: Mozilla Crash Reporter

  Recently, I have updated my firefox but in a few hours, it has stopped working. I constantly get a "Mozilla Crash Reporter" who says:
  "We are sorry".

  Firefox has been a problem and crashed. We will try to restore your tabs and windows when it restarts.

  etc... »
  It offers the possibility to restart, but when I click on "Restart Firefox" the same window pops up again and again and again.
  I tried restarting, open in safe mode, scans (I have Norton 360), running and system restore. Something to do with mozilla does not open, and I don't mean to uninstall because I have all my favorites in Firefox.
  The details of the "Mozilla Crash Reporter" States the following:

  AvailableVirtualMemory: 2023514112
  BuildID: 20111220165912
  CrashTime: 1328338399
  InstallTime: 1327124002
  Notes: xpcom_runtime_abort(###!!!) ABORT: Hand-threaded only object used on the main thread: file e:/builds/moz2_slave/rel-m-rel-w32-bld/build/xpcom/base/nsCycleCollector.cpp, line 1273)
  ProductName: Firefox
  ReleaseChannel: press release
  SecondsSinceLastCrash: 755
  StartupTime: 1328338399
  SystemMemoryUsePercentage: 54
  Ramjet: 1
  TotalVirtualMemory: 2147352576
  URL:
  Seller: Mozilla
  Version: version 9.0.1

  This report also contains technical information about

  Please help, thanks.

  --> Updated Firefox to version 10

  • Installation of Firefox

  Check and tell if its working.

• Cannot open Firefox and Chrome

  I had installed the Savevid video plugin in Google Chrome... after which, chrome has not opened at all...! Then, I uninstalled chrome and tried to reinstall, it process "Chrome.exe" (setup) would just appear and disappear in the Manager of tasks... "." In addition, then I installed Firefox, and tried to open it, but the same way, "firefox.exe" appears and disappears from the Task Manager (in the process tab)... Please help me... I am not able to access these browsers at all!

  Hi Pullak_Barik,

  I see this is your first question, welcome to the community.

  What I would recommend is to restore your system to before that the problem occurred by returning to right until you have installed the plugin SaveVid.  Windows converts this easy and safe. Here's how:

  1. Press + R to display the race.
  2. Type RSTRUI and then press OK.
  3. Choose the date and time you want to restore (it will also tell you the names of all the programs that have been installed at this time).
  4. Click next to restore your system at that time here.

  The best part about this, is that it is completely safe. If you don't like the food, you can cancel it.  Or you can try again with a different date.  It will not affect one of your personal files/images, it restores only the system return settings to their operational status.  If that's really the way the faster, safer and easier to get "back in the market".

  Let me know how it goes.