Create the copy where your list lives
Open My List in the browser that contains your saved films. Choose Create backup and copy the complete text from the backup box. Store that text before clearing site data or moving to a replacement device.
Merge it in the receiving browser
Open My List on the other device, paste the complete text into Restore backup and choose Merge backup. Recognized saved titles are added without creating duplicates. Existing checkpoints on the receiving device are kept; a backup fills missing checkpoints rather than silently moving an existing position backward.
Read the result
The status tells you how many titles and checkpoints were added and how many unavailable entries were skipped. A broken or incomplete text block cannot be imported. A backup from another brand is also a different format, even if its page uses a similar list interface.
The backup does not carry videos, viewing-service passwords, recently browsed history or your country selection. Re-select the viewing country on the new device, then open one saved series to confirm the checkpoint before discarding your old copy.