I am unable to close Firefox, rebooting computer does not work, and an antivirus check has proved negative.
I have Firefox 29, and up until now it has been working perfectly. However, when I recently closed the program, and attempted to reopen Firefox nothing happened. I attempted to re-download version 29, but received the message 'Firefox is already running. Please close Firefox prior to launching the version you have just installed.' I also attempted to uninstall the program but received the message 'Firefox must be closed to proceed with the uninstall. Please close Firefox to continue'. I have rebooted the computer but I am still unable to close Firefox. I have scanned the whole computer with AVG anti-virus and no problems were revealed.
Solution choisie
Hello @streveedw
You can try to close the application manually from Windows Task manager.
- Right click your toolbar at the bottom of the screen and select "Open task manager"
- Go to "Processes"
- Sort Image names alphabetically by clicking it, and look for "firefox.exe".
- Select this process and click end process.
Now Firefox should be closed and you should be able to proceed with any other actions (like reinstall or uninstall).
I hope this helps.
-- Jørgen Juel
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Have you tried killing the firefox.exe process in the Task Manager?
- Click Start > in the search box type
taskmgr.exe - Go to the Processes Tab
- End all firefox.exe processes.
Solution choisie
Hello @streveedw
You can try to close the application manually from Windows Task manager.
- Right click your toolbar at the bottom of the screen and select "Open task manager"
- Go to "Processes"
- Sort Image names alphabetically by clicking it, and look for "firefox.exe".
- Select this process and click end process.
Now Firefox should be closed and you should be able to proceed with any other actions (like reinstall or uninstall).
I hope this helps.
-- Jørgen Juel
Problem solved. Many thanks for your kind assistance.
Thanks for your assistance