History of "Firefox is already running but is not responding" error - How to fix

Category:
Troubleshooting
Revision history for:
English

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Revision Status S Editor R Comment
Current   Mark Heijl minor edits
Approved M AliceWyman removed bug 1740617 workaround, other edits. Needs review for win11
Approved M dvdag Added Windows 10 task manager screenshot and relevant instructions
Approved MT AliceWyman {for win} -> {for win,win11} (bug 1740617). command line options link, renamed article link
Approved   AliceWyman removed unneeded bullet point
Approved M AliceWyman new Image: Windows Task Manager
Approved M Underpass -no-remote is without spacing. I would also insert a new image of the task manager
Approved M AliceWyman Remove the -no -remote startup option
Reviewed M display_name How to prevent the error when Firefox is running and we click on a link outside of Firefox. And also how to prevent it when Firefox is running and we run it again.
Approved M AliceWyman Remove the profile lock file (see discussion) and other edits
Approved M Tonnes add For win10
Reviewed M Martin.monperrus add another solution based on environment variables
Approved M Lan Removed old content
Approved M philipp see discussion, the easiest way is probably to just hide the section for the parent.lock for versions after 13 - not sure if tinkering with it would still have any beneficial impact
Approved M AliceWyman "use the Profile Manager" (in last section) linked to kb article
Approved M AliceWyman Added Mac screenshot
Approved M AliceWyman Mac error is ''A copy of Firefox is already open." (see discussion)
Approved   Artist minor edits (wording only)
Approved M Underpass added "for" for different Windows versions
Approved   Tonnes trying->try, move/captialize Ubuntu and items, use Menu/Button, not the case -> if the profile is locked (as the need for an unlocked profile is always the case)
Approved M AliceWyman updates for fx34 - see discussion
Approved M Joni added profile unlocker
Approved   user917725 removed Template:ShareArticle
Approved M Michael Verdi Made section about missing profile for fx 13 and lower - message changed with bug 278860
Approved   ideato delete a dublicate word (lock) in "Remove the profile lock file" (Delete the parent.lock "'lock"' file)
Approved M Michael Verdi New 160 character search summary
Approved M Swarnava Sengupta added the Share this article template
Reviewed   trlkly added info about -p switch
Approved M mluna combining contributions from last three editors into one version
Unreviewed   jbnewby67 Solution for Firefox Still Running error in linux Ubuntu.
Unreviewed   AliceWyman (edit to pending revision by scoobidiver) Firefox hangs article was just revided and heading names were changed. I fixed the link in the Intro note to [[Firefox hangs#w_firefox-hangs-when-you-quit-it]]
Unreviewed   scoobidiver rewritten intro, new screenshot, sections named as solution, removed fx3 content, added lock file heading, added file share sections, updated chkdsk links
Approved M John99 minor edit merely to fix a link
Approved M Michael Verdi Added a summary. Also deleted the note in the last section because it pertained to instructions in another article.
Unreviewed   Michael Verdi Fixed showfor fx 3.0

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