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Every time I start up it says it's already running. I uninstalled and reinstalled 3 times...

  • 19 replies
  • 9 have this problem
  • 160 views
  • Last reply by guigs

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Message states

"Firefox is already running but not responding. The old Firefox process must be closed to open a new window."

So then I click "Close Firefox".

Then I open it again and I get the same message....

DKF

All Replies (19)

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Hello dkflipse

Try this articles: https://support.mozilla.org/en-US/kb/firefox-already-running-not-responding

Hope it works :)

if not, than tell what kind of OS and version of Firefox are you using.

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Create a new profile as a test to check if your current profile is causing the problem.

See "Creating a profile":

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.

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Do you have the Firefox icon on your quick launch? Right click on it, and select Open New Window. Sometimes this works. If it opens, close it by Menu > File > Exit.


This is not a cure but will make it easier if Firefox locks up in Windows. https://support.mozilla.org/questions/997866 {web link}

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Windows 7, Firefox version...? Whatever Firefox has from its download page....

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I can't even open it. So any suggestion that requires me to do something on the Firefox home page wont work...

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OK. I deleted the Parent Lock file and that seemed t fix it...not sure what this does or if I need it back...but Firefox now works.

Thanks folks.

Nevermind. Doesn't work....

Modified by dkflipse

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That was very good work. Well Done. Please flag your last post as Solved Problem so other will know.


https://support.mozilla.org/en-US/kb/block-and-unblock-websites-parental-controls-firef Block and unblock websites with parental controls on Firefox This article lists resources for blocking children from using Firefox, certain websites or certain content that may be offensive or inappropriate.

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OK this sux. I deleted Java to see if it helped. Just reinstalled it. Now Firefox doesn't work.. again....what a POS!

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I've called the big guys to help you. Good luck.


A post was flagged as Solved Problem. Please remove that flag. If you don’t, others that can help may not read this post.

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Thanks. Still waiting.....

FredMcD said

I've called the big guys to help you. Good luck.

A post was flagged as Solved Problem. Please remove that flag. If you don’t, others that can help may not read this post.

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Two weeks...still can't get Firefox to work....still can't get an answer.....is this what happens when you use free software....?

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FredMcD said

I've called the big guys to help you. Good luck.

A post was flagged as Solved Problem. Please remove that flag. If you don’t, others that can help may not read this post.

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FredMcD said

FredMcD said
I've called the big guys to help you. Good luck.

A post was flagged as Solved Problem. Please remove that flag. If you don’t, others that can help may not read this post.

Where do I remove that. Three weeks and still not able to use Firefox...

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Download Firefox Full Installer For All languages And Systems {web link} Save the file. Then;

Using your file browser, open the Programs folder on your computer.

Windows: C:\Program Files C:\Program Files (x86) Mac: Open the "Applications" folder. Linux: Check your user manual.

Look for, and rename any Mozilla and Firefox folders by adding .old to them.

Now run the full installer. If all goes well, remove the OLD folders when you are done.

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FredMcD said

Download Firefox Full Installer For All languages And Systems {web link} Save the file. Then; Using your file browser, open the Programs folder on your computer. Windows: C:\Program Files C:\Program Files (x86) Mac: Open the "Applications" folder. Linux: Check your user manual. Look for, and rename any Mozilla and Firefox folders by adding .old to them. Now run the full installer. If all goes well, remove the OLD folders when you are done.

OK. What is the file browser?

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On Windows 7 that is Windows Explorer.

Did you try a new profile like I suggested above?

Boot the computer in Windows Safe mode with network support (press F8 on the boot screen) as a test to see if that helps.

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dkflipse said

FredMcD said
Download Firefox Full Installer For All languages And Systems {web link} Save the file. Then; Using your file browser, open the Programs folder on your computer. Windows: C:\Program Files C:\Program Files (x86) Mac: Open the "Applications" folder. Linux: Check your user manual. Look for, and rename any Mozilla and Firefox folders by adding .old to them. Now run the full installer. If all goes well, remove the OLD folders when you are done.

OK. What is the file browser?

OK. I just want to use browser. Not hack into the Pentagon. This is way too complex. Can anyone point me to a Youtube (maybe Google is the answer...) tutorial on this? Thanks. This is way to complex. FredMcD said

Download Firefox Full Installer For All languages And Systems {web link} Save the file. Then; Using your file browser, open the Programs folder on your computer. Windows: C:\Program Files C:\Program Files (x86) Mac: Open the "Applications" folder. Linux: Check your user manual. Look for, and rename any Mozilla and Firefox folders by adding .old to them. Now run the full installer. If all goes well, remove the OLD folders when you are done.

OK. I just want to use my browser. Not hack into the Pentagon...Can anyone point me to a Youtube tutorial on this. Again, maybe Google is the just the way to go? Thanks. Donn

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Download the full installer from Download Firefox Full Installer For All languages And Systems {web link}

Once the file is downloaded, run the installer. That is it. If you are having a problem, please describe it.

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Hello, I understand that there is a message that says Firefox is already running and after a reinstall and a new profile there is still a parent.lock file and Firefox still does not start properly. I also understand that the provided troubleshooting steps are slightly too technical.

Running an installer over an installation of Firefox does not change the default profile. It may require a clean reinstall to clean out anything that is causing Firefox to not shut down properly.

It might be helpful to have a technician assist you with this issue and have them refer to these troubleshooting steps. Unfortunately when Firefox does not shut down properly it is a tricky issue to solve.

What we can recommend is to scan your computer for malware, Make a back up of your profile: Back up and restore information in Firefox profiles, EDIT: a clean reinstall may not help considering that you already tried this. This issue will require some assistance.

Modified by guigs