To open the Bookmarks Manager, press the Alt or F10 key bring up the tool bar, and select Bookmarks. Hot key is <Control>(Mac=<Command>) <Shift> B.

Once the window is open, at the top of the page, press the button labeled Import and Backup. Select Export Bookmarks To HTML, and follow the prompts and save it to a HTML file. Copy the file to another computer. Repeat the instructions above, BUT select Import Bookmarks From HTML,

https://support.mozilla.org/en-US/kb/restore-bookmarks-from-backup-or-move-them

https://support.mozilla.org/en-US/kb/recover-lost-or-missing-bookmarks

Thank you Fred, for your quick reply. Unfortunately, I’m so ignorant of computer terminology, I’m lost with your instructions. Can you please be more detailed for me as an idiot? I’ve been running Windows XP smoothly for many years on a Mac Mini via Apple Bootcamp software with an Apple keyboard. But since Microsoft quit supporting XP, it’s been down hill for past 2.5 years and have recently bought a iMac on advise of old friends I’ve trusted for many years. Dave

Just follow the instructions above.