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SAVE & AUTOFILL

Save and autofill passwords in Mozilla Firefox

With LastPass, your digital life is always at your fingertips. Securely save and autofill logins, credit cards, addresses, and more in Firefox and beyond.

Free trial for all plans. No credit card required.

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Access your passwords from anywhere

With the LastPass extension for Mozilla Firefox, you can create, save, autofill, and manage your passwords, login credentials, and checkout data with complete ease.

  • Autofill credentials while remaining on the website you’re on in Firefox.
  • Instantly generate and save a new unique password whenever creating a new account. LastPass will autofill it the next time you need to log in.


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Simply autofill all your data in Firefox form fields

LastPass makes your data immediately accessible, whether you’re trying to log in or check out. By clicking the LastPass form field pop-up, you can autofill:

  • Usernames and passwords.
  • Email addresses.
  • Credit card numbers.
  • Home and business shipping addresses. 


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Do more than save and autofill. LastPass offers you an all-in-one password management

  • Encrypted at your device: Local, device-level vault encryption ensures your personal data is always protected.
  • Integrated with your vault: Your password vault is instantly accessible via LastPass’ Mozilla Firefox extension so your login details are always within reach.
  • Accessible only to you: LastPass zero-knowledge security ensures only you can see and access your password vault. 
  • Access your vault from anywhere: Cross-device sync means your passwords aren’t restricted to Firefox. With LastPass, you can store, manage, and access your passwords across all web browsers, operating systems, and device types. 
  • Share securely: Leave unsafe sharing password practices in the past. LastPass lets you share passwords directly to other users, so your passwords remain protected while accessible to those who need them. 
  • Improve your security habits: Track and monitor your cybersecurity habits with essential security features like a live password strength tool and dark web monitoring.

Sincronize suas senhas e dados de preenchimento de formulários entre todos os seus dispositivos

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Extensões do LastPass para navegadores

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Aplicativos do LastPass para desktop

  • Windows
  • Mac
  • Linux
  • Cofre Web
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Aplicativos do LastPass para dispositivos móveis

Conheça outros recursos do LastPass

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Monitoramento da dark web

O LastPass alertará você imediatamente caso seus dados pessoais sejam encontrados na dark web.

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Gerador de senhas

Crie senhas seguras, exclusivas e difíceis de adivinhar para as contas que você já tem e as que venha a criar.

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Compartilhe credenciais com segurança

Compartilhe senhas e documentos com amigos, colegas, colaboradores e prestadores de serviços sem colocar a segurança em risco.

Frequently asked questions

Is the Firefox password manager good?

While the Firefox password manager is a convenient option for Firefox users, it’s not the best free password management solution available.

Someone looking for enhanced password security, management, and sharing features will get much more out of a standalone solution like LastPass Free. 

LastPass Free gives users an encrypted password vault protected by a master password – which only the user knows. They can store essential documents inside of their password vault as well as enable security features like two-factor authentication and dark web monitoring. LastPass’ paid plans take password management even further, allowing users to protect their whole digital life, wherever they go.

How do I enable LastPass autofill in Firefox

First, you need to download the LastPass add-on for Firefox. Once downloaded, LastPass will appear in your Firefox add-ons. Click on the LastPass logo to open your password vault – and create an account if you haven’t done so yet. 

Once you’re logged in, LastPass is prepared to autofill your passwords when you need to log in.  

How do I export passwords from Firefox to import them to LastPass?

  • Go to your “Settings” in Firefox > “Privacy & Security” > “Logins and Passwords” > “Save Logins”.
  • Open your Firefox browser and go to “Settings”.
  • Click on the “...” button in the top right. From the drop-down menu, click on “Export Logins...”. Confirm you want to export your passwords and choose where you’d like to save the file.
  • Open your LastPass add-on in Firefox. 
  • Select “Advanced Options” > “Import”  > “Firefox”.
  • Either drag and drop the file containing your exported passwords or select it by browsing your computer’s files.
  • Select “Import All” to import all your passwords to LastPass or select only the passwords you want to move over.

Don't see your questions here? Visit Support Center.

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