Yonke imikhiqizo Isithangami Sokwesekwa

I have Mac 10.12.6 on an "early 2009" 27" iMac. I'm waiting for the new 27/32inch iMac until I upgrade hardware and operating system. The release notes with FF V115 say in part " Users on those operating systems will be migrated to the ESR 115 version of Firefox."

I want to clarify that when I update to FF 116, FF will automatically install the ESR version, or will I need to do this manually? Also, will this update take a long time, like FF will be installing a totally new (ESR) version, rather than "just" the usual update?

Using Firefox v91.11 I can't print a selection from a web page as the 'Print Selection Only' option is grayed out. This has never been an issue for me in earlier versions but appears to have been a problem with Firefox going back many years. This is the second time I have asked for help in solving this so I would really appreciate a response as I can't find a solution anywhere.

Note that the issue is only a problem when trying to print from a web page using Firefox v91.11. Safari doesn't even offer this option but the option is there and works in Chrome.

Thank you