Save your password into the safe box.
Password Safe Box is very very security because of its features:
1.Any network privileges no need. This feature ensure the data that saved in the extension can't send to any server by Internet,
and then ensure your data will not be stolen by the developer of the extension;
2.Use the AES encryption algorithm, the USA goverment also adopt it.
3.Never save the user's enter password in the disk. And it will destroy the password in the computer memory
immediately after you close the extension popup window.
4.Use the google cloud to backup your data which would be encrypted before upload.
More details see the "More Help" page in the extension.
The extension can save other private information like private letter,daily etc which is write with text.