What you could do is to create a master folder with all the data you want to be copied. Then copy that data when you want. A Windows batch program can do that for you.

You can also use sync as well. The benefit of sync is the data would be updated on the fly. The drawback is if the data is changed on one member of the sync, all members would be changed.

Note: If you like the sync idea, one thing you could do is to sync the data, but shutdown and remove the sync (including the password) before giving the profile to whoever.

"Then copy that data when you want" where can i paste the data, and by data do you mean save bookmarks shortcut in folder and copy it to the firefox?

I was talking about the files in the profile folder. Copy files you want to backup to another folder on your hard drive. Then, if something goes bad, you can copy the backup file back to the profile folder.

"You can also use sync as well. The benefit of sync is the data would be updated on the fly. The drawback is if the data is changed on one member of the sync, all members would be changed." do you have guide for that?

https://support.mozilla.org/en-US/kb/how-do-i-set-sync-my-computer Sync your bookmarks, history, passwords, add-ons and open tabs with another copy of Firefox. Learn how to set up Sync.

https://support.mozilla.org/en-US/kb/how-do-i-choose-what-types-information-sync-firefox We'll show you how to choose which types of information (bookmarks, history, add-ons, and passwords) to share across all your devices through Firefox Sync.

https://support.mozilla.org/en-US/kb/firefox-sync-troubleshooting-and-tips

https://support.mozilla.org/en-US/kb/sync-firefox-bookmarks-and-browsing-history-iOS Sync your passwords, history, tabs and other browsing information across your iOS, Android and desktop computers with Firefox Accounts.

Can you can use enterprise policy to do this:

https://github.com/mozilla/policy-templates/blob/master/README.md#bookmarks