Create a complete copy
Open My List and choose Create backup. Copy everything in the output field into a note or document you can retain. Do not trim the beginning or end of the text.
Merge in the receiving browser
Open My List there, paste into Restore backup and choose Merge backup. Recognised titles and valid episode checkpoints are imported. Existing checkpoints in that browser take priority.
Read the result message
The message tells you what was added and whether entries were skipped. An unrelated backup or incomplete text receives an error rather than silently replacing your list. Repeating the same import should not create duplicate saved titles.
What a backup cannot restore
It contains no movie files, viewing-service logins or purchased editions. Keep those accounts with their respective services. The backup preserves your Faragski choices and reminders.