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Firefox wont open

CM
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Hello, Using windows 10. Firefox wont open but get a box telling me old Firefox is running needs to be closed. Have shut it down but still nothing happens. I think I may have backed up my bookmarks on my PC but not sure where they are? Also tied entering and this dispalys C:\Users\Chris>AppData\Roaming\Mozilla\Firefox\Profiles\ 'AppData\Roaming\Mozilla\Firefox\Profiles\' is not recognized as an internal or external command, operable program or batch file. Help please to restore Firefox and hopefully not loose my bookmarks?

Thank you

Hello, Using windows 10. Firefox wont open but get a box telling me old Firefox is running needs to be closed. Have shut it down but still nothing happens. I think I may have backed up my bookmarks on my PC but not sure where they are? Also tied entering and this dispalys C:\Users\Chris>AppData\Roaming\Mozilla\Firefox\Profiles\ 'AppData\Roaming\Mozilla\Firefox\Profiles\' is not recognized as an internal or external command, operable program or batch file. Help please to restore Firefox and hopefully not loose my bookmarks? Thank you
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Additional System Details

Application

  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.18362

More Information

FredMcD
  • Top 10 Contributor
4269 solutions 59870 answers

Chosen Solution

https://support.mozilla.org/kb/Firefox+is+already+running+but+is+not+responding https://www.basezap.com/cant-open-firefox-because-a-copy-of-firefox-is-already-open-mac/ https://apple.stackexchange.com/questions/196771/cant-open-firefox-because-a-copy-of-firefox-is-already-open http://kb.mozillazine.org/Firefox.exe_always_open
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cor-el
  • Top 10 Contributor
  • Moderator
17578 solutions 158993 answers

Helpful Reply

Did you try to reboot the computer ?

Did you try to reboot the computer ?
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Question owner

''FredMcD [[#answer-1267382|said]]'' <blockquote> https://support.mozilla.org/kb/Firefox+is+already+running+but+is+not+responding https://www.basezap.com/cant-open-firefox-because-a-copy-of-firefox-is-already-open-mac/ https://apple.stackexchange.com/questions/196771/cant-open-firefox-because-a-copy-of-firefox-is-already-open http://kb.mozillazine.org/Firefox.exe_always_open </blockquote> Took 2 attempts and a reboot but using Task Manager cleared the old FireFox. Many thxs. Only concern is why i got the error message in command prompt re not finding my profile?
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FredMcD
  • Top 10 Contributor
4269 solutions 59870 answers
https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible http://kb.mozillazine.org/Profile_folder_-_Firefox#Navigating_to_the_profile_folder https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles Type '''about:profiles'''<enter> in the address bar. How many profiles are listed? How many should be there? Also, open the profile folder in your file explorer.
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