Firefox will not start on Mac 10.10.4

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• Firefox will not start after update

  Firefox will not start today. I think he had an update yesterday.
  Click it, lift the loading symbol, but never implemented. In Task Manager it is a firefox.exe * 32 running. Have you tried to uninstall, delete Mozilla Firefox folder in Program Files x 86 iti also tried to suppress the appdata profile (after saving the Favorites and passwords). I can't even boot up in firefox safe mode and can not get to start Profile Manager. If I start (7 x 64) of windows in safe mode, I can start firefox. I use Norton Internet Security. I checked the settings of firewall smart and experienced of firefox is still set to allow. I tried starting firefox with smart firewall turned off and firefox still refuses to start
  Renounce top almost ready

  Hello ziggy1, as this can sometimes be caused by a malware active on a system, please run a scan with tools of different security like the free version of malwarebytes, the adwcleaner and the scan to microsoft security.

  Fix Firefox problems caused by malicious software

• Firefox will not start after the upgrade to 27. Seen an error message during the upgrade process.

  Firefox will not start after the upgrade to 27. Seen an error message during the upgrade process, but do not remember.
  Tried running firefox.exe Pei but error message:

  XML parsing error: the undefined entity
  Location: chrome://mozapps/content/profile/profileSelection.xul
  Line 18, column 1:
  "< dialog < =" "^ =" "p =" "> < / dialogue >

  Running on Windows XP SP3. No problem whatsoever before moving to 27. Sending of Chrome that I can't open Firefox at all.

  Thank you, jschaer2000. In the meantime, he works. How long, we'll see ;-)

• Why firefox will not start after update?

  Update the alert message. Did a hard stop. Rebooted computer and Firefox will not open.

  Maybe during the update some files were corrupted, try a clean reinstall:

  Some Firefox problems can be solved by performing a clean reinstall. This means that you remove Firefox program files, and then reinstall Firefox. Please follow these steps:

  Note: You can print these steps or consult them in another browser.

  1. Download the latest version of Firefox from http://www.mozilla.org office and save the installer to your computer.
  2. Once the download is complete, close all Firefox Windows (click on quit in the file menu or Firefox).
  3. Remove the Firefox installation folder, which is located in one of these locations, by default:
     • Windows:
       • C:\Program Files\Mozilla Firefox
       • C:\Program Files (x 86) \Mozilla Firefox
     • Mac: Delete Firefox in the Applications folder.
     • Linux: If you have installed Firefox with the distribution-based package manager, you must use the same way to uninstall: see Install Firefox on Linux. If you have downloaded and installed the binary package from the Firefox download page, simply remove the folder firefox in your home directory.
  4. Now, go ahead and reinstall Firefox:
     1. Double-click on the downloaded Setup file and go through the steps in the installation wizard.
     2. Once the wizard is completed, click to open Firefox directly after clicking the Finish button.

  More information on the resettlement of Firefox can be found here.

  WARNING: Uninstaller or the use of Firefox and not run a third remover as part of this process, because who could permanently delete your Firefox data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and passwords saved. These can be recovered, unless they have been backed up on an external device!

  Also:

  • Firefox in safe mode
  • Reset Firefox
  • Create a new profile

• 12 elements will not start on Mac

  Hi I used Photoshop elements 12 on my Mac OS X El Capitan for many years, but today it will not start. I get an error message "Photoshop elements 12 editor quit unexpectedly" and told me to click on resume to start again... but by clicking reopen comes back to the same error message?

  Frank

  Hi, Frank. What is the version of the App Store?

  You probably need to reinstall. Your download should always be available in the Mac App Store under "purchases".

  Apple has had problems with security certificate expired affecting all applications downloaded from the Mac App Store. Here's a solution that worked. Give it a try by following each step:

  I had the same problem on the Mavericks and your suggestion worked for me.  FYI, I deleted the items, empty trash, disconnected from the App Store, restarted the computer, signed in to the App Store, then downloaded items.  I use OS x 10.9.5 and 11 elements.  Hope this helps!

• After the most recent upgrade, Firefox will not start

  I've just updated Firefox to the latest version. Firefox does not start now. I get no error message. I navigated to the Mozilla Firefox folder and tried to run to that from this site and that doesn't work anymore.
  Thank you
  Calvin

  I backed up my profile tried to run again without success. It wouldn't create a new profile.
  I completely uninstalled and deleted all the files associated with it. Then clean the registry. Reinstalled and now it works fine.
  Not sure what happened, but it works now.
  Thank you
  Calvin

• Updated Firefox to 8.0 but now Firefox will not start? Ideas?

  8.0 - but Firefox downloaded last night he hung "checking addons for compatibility" come far as Firefox does not start or if she start crashes immediately. Have made eligible by Mcaffee firewall. removed re downloaded version 7.0, version 8.0 new and 4.0 None of these work - add seem to hang up, checking the Add-ons. Google Chrome works fine, but how do I get firefox to work - ideas?

  I have the same problem. Firefox 8.0 browser not start after the update or reinstall. I have download the version of firefox 6.0.2 Google site, it works fine now.

• 32 Firefox will not start after a download.

  On windows XP sp3. Chrome and Iexplorer 8 will take place. Firefox will launch. Cannot run firefox.exe Pei either.

  You can start Firefox in Safe Mode by holding down the shift/Options button?

  • https://support.Mozilla.org/KB/troubleshooting+extensions+and+themes

  Do a clean reinstall and delete the program folder before Firefox to (re) install a new copy of the current version of Firefox.

  • Download the full Firefox installation program and save the file to the desktop
    https://www.Mozilla.org/en-us/Firefox/all.html

  If possible to uninstall your current version of Firefox to clean the Windows registry and settings in the security software.

  • Do NOT remove the "personal data" when you uninstall your current version of Firefox, because this will remove all profile folders and you lose personal data such as bookmarks and passwords including data profiles created by other versions of Firefox.

  Delete the program folder Firefox before installing newly downloaded copy of the Firefox installer.

  • (32-bit Windows) "C:\Program Files\Mozilla Firefox\"
  • (Windows 64 bit) "C:\Program Files (x 86) \Mozilla.
  • 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.
  • http://KB.mozillazine.org/Uninstalling_Firefox

  Your bookmarks and other personal data are stored in the Firefox profile folder and will not be affected by a uninstall and (re) install, but do NOT delete personal data when you uninstall Firefox which removes all Firefox profile folders and you lose your data.

  If you keep problems also create a new profile.

  • http://KB.mozillazine.org/Profile_folder_-_Firefox
  • http://KB.mozillazine.org/Profile_backup
  • http://KB.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall

• Since graduating from version 22 (updated channel version), I had a few days with a very large text; Today, Firefox will not start. How to run again?

  I searched a file in Firefox program .exe files, but it doesn't seem to be any where. I would like to uninstall, download a new program and reinstall, but I will not lose rather bookmarks and other settings.
  Running Windows 7 on a Sony Vaio laptop. Any suggestions? Thanks in advance.

  Some Firefox problems can be solved by performing a clean reinstall. This means that you remove Firefox program files, and then reinstall Firefox, you WILL NOT lose any bookmarks, history and settings. Please follow these steps:

  Note: You can print these steps or consult them in another browser.

  1. Download the latest version of Firefox from http://www.mozilla.org office and save the installer to your computer.
  2. Once the download is complete, close all Firefox Windows (click on quit in the file menu or Firefox).
  3. Remove the Firefox installation folder, which is located in one of these locations, by default:
     • Windows:
       • C:\Program Files\Mozilla Firefox
       • C:\Program Files (x 86) \Mozilla Firefox
     • Mac: Delete Firefox in the Applications folder.
     • Linux: If you have installed Firefox with the distribution-based package manager, you must use the same way to uninstall: see Install Firefox on Linux. If you have downloaded and installed the binary package from the Firefox download page, simply remove the folder firefox in your home directory.
  4. Now, go ahead and reinstall Firefox:
     1. Double-click on the downloaded Setup file and go through the steps in the installation wizard.
     2. Once the wizard is completed, click to open Firefox directly after clicking the Finish button.

  Please report back to see if this helped you!

• After downloading and installing an update of safety about an hour ago, firefox will not start

  After going online this morning, with my firefox browser, a box came say a security update was available and must be downloaded and installed. This has been done without apparent problem. At the end of the update, a note came up saying that the update should come into service after restarting my computer. What I've done. The computer started normally, but after clicking on the firefox icon, the program is not started. My computer is using Windows XP Service Pack 3.

  Hello tncovery, it works when re-download you the full installation file from getfirefox.com and install on top of your current installation?

• URGENT! Adobe Illustrator CS6 will not start on Mac OS El Capitan version 10.11

  Urgent Adobe Illustrator CS6 does not start after my Mac Upgrade OS El Capitan version 10.11

  Not compatible with Java installed.

  How can I fix this?

  Update the Java installation?

• Dremweaver CC will not start on Mac os maverick

  Hello

  I installed Dreamwear CC, but it does not start... When I click it, just anything happen.

  I read in the forum solutions and tried but without success (uninstalled java etc.) but nobody got my problem...

  No problem with other applications (I have the full suite of CC).

  If may be help on my mac, it's still installed older version of dw (CS5)

  .. .any suggestion?

  Thank you

  Giovanni

  Hi ben,

  Thanks for the tips.

  I read all the info, but my Setup did nothing wrong...

  In any case I SOLVED downloading directly from adobe dreamweaver (before I try to install Director creative clud), then login with my account to activate it.

  Giovanni

• Firefox will not start even after uninstal and reinstal

  I was using Firefox normally. I shut it off for awhile then I would never open again. I uninstalled and reinstalled and it did not fix the problem. I deleted the program files and profile records and reinstalled again... same thing. When I run it, the rotation slider works for awhile then goes back to the arrow shape. I have no more details to give.

  Thanks to Cor - el, that put me in the right direction. My problem wasn't with any security system, but with software that has been installed in my computer without my consent. I found it through all the applications in the window settings and programs. The culprit is "Interenet optimizer" (named exactly like this). After uninstalling this guy, my Firefox started without any glitch.

• Firefox will not start after the upgrade to 27. Try each idea online for 4 hours. Nothing has worked. Downgraded to 26

  I have the same problem that
  https://support.Mozilla.org/he/questions/985552#question-reply
  I tried everything I could find online. Uninstall and reinstall. tried even completely uninstall, leaving the data in my profile (I save him in chrome).
  Nothing has worked. the firefox.exe process appears in the Manager of tasks for 3 seconds and disappeared.
  Finally I downgrade to FF26 - an unofficial version on the web and not my locale.
  You must provide an option to download the old versions.
  V27 is too faulty. I'm sorry.
  I'm still using Win XP sp3.

  You said that Kaspersky FF files are and works very well. What is the latest
  update you Kaspersky? Have you scanned for malware? Use several of
  the programs listed below.

  ======================================

  Sometimes a problem with Firefox can be a result of malware installed on your computer, you may not be aware of.

  You can try these free programs to search for malicious software that work with your existing anti-virus software:

  • Microsoft safety scanner
  • MalwareBytes' Anti-Malware
  • TDSSKiller - AntiRootkit utility
  • Hitman Pro
  • ESET Online Scanner

  Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP, if you do not already have one.

  More information can be found in the article troubleshooting Firefox problems caused by malware .

  This solve your problems? Please report to us!

• Firefox Will not start with the home page. Continues to set up where I left off whenever I start firefox

  Firefox keeps opeing where I left instead to start with my home page. I use the latest firefox with windows8. Dosen't happen with windows7. This has happened with the last update.

  Replacing the pref.js didn't fix the problem, I just do a default reset firefox and that solved the problem.