Select Bookmarks > Import bookmarks and settings...
You may choose to import from other installed browsers, or from a bookmarks backup file (.html). We will use a bookmarks file for demonstrative purposes. Select Bookmarks HTML File
Select Choose File
Navigate to and select your bookmarks file. Select Open
Click on the Favorites menu
Select its overflow menu
Select Import favorites
You may choose to import from other installed browsers, or from a bookmarks backup file (.html). We will use a bookmarks file for demonstrative purposes. Select Favorites or bookmarks HTML file
Select Choose file
Navigate to and select your bookmarks file. Select Open
That's it! Your bookmarks should be restored to their appropriate locations.