Thank you for your review and feedback! Except for certain functionalities like syncing/adding new aliases etc. which would require you to be online, the Proton Pass extension can already be used offline. As for the password generator, you can easily access it by selecting the '+' icon → Password.

Hi! Could you please let us know what specifically you're having trouble with in an update to your review? If you need any assistance on our end, you can contact us at: https://proton.me/support/contact.