可以给浏览器的书签文件夹单独设置密码锁或进行加密吗？

The Open Plaintext Nature of Browser Bookmarks

In Chrome, Edge, and Safari, bookmark files are stored as plain unencrypted JSON or SQLite files on your local hard drive (Bookmarks file). Anyone with access to your computer profile can open and read every saved link without authentication.

Securing Sensitive Links and Private Boards

To protect private financial tools, research archives, or confidential client boards, use dedicated cloud bookmark managers that enforce multi-factor authentication (MFA/2FA) or maintain a separate locked browser profile with operating system credentials.