Make the copy where your list exists
Open My List in the browser where you saved your films. Press Create backup, then copy all the text from the backup box. Store it somewhere you can reach from the second device. The file contains title identifiers and episode checkpoints, not films or passwords.
Merge, do not replace
On the other browser, paste the complete text into Restore backup and press Merge backup. Existing saved titles stay in place. Repeated titles are not added twice, and existing episode checkpoints are kept. Unknown titles or invalid chapter numbers are skipped rather than invented.
If the text is rejected
Check that you copied the opening and closing braces and did not paste a screenshot or an unrelated app’s export. The page accepts this website’s VidPlay backup format. A backup that fails validation does not change your current list.
Before clearing storage
Confirm that the restored titles and checkpoints appear on the second browser before resetting the first. Viewing country and recently browsed history are separate preferences and are not included in this list backup.