Kaspersky Password Manager (KPM). It remembers the complex passwords so you don't have to. It works like a silent, very loyal butler living inside your Firefox browser.
If you lose your Master Password, your data is gone forever. Kaspersky cannot reset it. That is a feature, not a bug. Write it down on a piece of paper and hide it in your sock drawer. Seriously.
Think of this guide not as a boring manual, but as your "Digital Butler" onboarding session. The Problem: You have 147 online accounts. Your brain uses the same password ("Fluffy123") for your bank, your email, and your Netflix account. This is bad. Hackers love you.
Some badly coded websites block auto-fillers. Click the K icon in the toolbar, search for the website, click the three dots next to it, and select "Open & Fill" . It opens the site and injects the data like a secret agent.