shortstop

I could not find anything. But when I normaly update CCleaner I usually just run the new version and install it, because I want to keep the same settings keep the same cookies settings in the options tab. I went and uninstalled CCleaner and then re-installed it and then ran CCleaner and this time it ran normal. It did not say that FireFox need to close. Not sure if you uninstall the older version then install the new version, but that may be the thing to do when it says a program needs to be closed when it is already closed

ok will see if I can find out anything

and yes I have Thunderbird set to not automatically update just like Firefox

no to the first, and yes I use Thunderbird for emails

I have mine set this way too. But only changed it about 4 days ago. Just ran CCleaner a minute ago and it still said I need to close FireFox. Hopefully Firefox can correct the problem with the next update.

I have Firefox set up to not automatically update but to notify me when an update is available,

I am running Window 10 pro 21H1 version 19043.1288 and Firefox version 94.0.1. I just update Firefox in the last two days, but the problem was also with the previous version. I also have Firefox to clear cookies when I close Firefox and have CCleaner do the same when it cleans. Thanks for the responses.

When I run CCleaner Custom Clean it keeps saying Firefox need to close. I ran CCleaner this morning after I turned my computer on. I had not yet used Firefox. This has been going on since I updated to version 5.86.9258