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message says operation can not be completed because firefox is in use, so I can't drag it to application box

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message says operation can not be completed because firefox is in use, so I can't drag it to application box

have downloaded new firefox (have firefox icon already on desktop MAC) in second step I try to drag the icon into the application icon and get message that says it can't because firefox is in use; bold text

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Site Moderator

Re: message says operation can not be completed because firefox is in use, so I can't drag it to application box

If there are problems with updating or with the permissions then easiest is to download the full version and trash the currently installed version to do a clean install of the new version.

Download a new copy of the Firefox program and save the disk image (dmg) file to the desktop

Your profile data is stored elsewhere in the Firefox Profile Folder, so you won't lose your bookmarks and other personal data if you uninstall and (re)install Firefox.