I'm looking for an add-on to the Firefox browser that will allow me to password protect the browser on startup. I would like the add-on to meet these requirements,
- Works on Windows 10 (I don't know how it wouldn't, though)
- Password can be simple and as short as a 4 digit pin
- Is gratis
Some features that are not requirements but wanted are,
- Encrypts the firefox user data directory
- Times out after a certain number of failed attempts
- Provides a log of entries and/or failed attempts