Secure Your Logins with MasterPassword for Firefox

MasterPassword for Firefox is a powerful add-on designed to enhance your online security by managing your passwords intelligently. It allows users to create a unique password for each site using a single master password, thus mitigating the risk of password reuse. This means that even if one site is compromised, your other accounts remain secure. The add-on generates site passwords mathematically without storing them, ensuring that your sensitive information is never at risk of being leaked due to hacks or breaches.

The add-on complements existing password managers while operating independently, providing a seamless experience. Users are advised not to accept Firefox's prompt to save generated passwords, as that would contradict the security principles of MasterPassword. It's a straightforward solution for anyone looking to bolster their password security without the hassle of traditional password storage methods, making it a valuable tool for anyone concerned about online privacy.

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App specs

  • License

    Free

  • Version

    3.0.0

  • Latest update

  • Platform

    firefox

  • Size

    238.13 KB

  • Developer

Program available in other languages



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Laws concerning the use of this software vary from country to country. We do not encourage or condone the use of this program if it is in violation of these laws.
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Is masterpassword for Firefox safe?

100/100

Score result: Clean

This file passed a comprehensive security scan using VirusTotal technology. It is safe to download.

  • Virus free
  • Spyware free
  • Malware free
  • Verified by Security Partners

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Scan Info

Last scan
Wednesday, October 15, 2025
Scan provider
VirusTotal · Full report

File Integrity

File
3.0.0.xpi
SHA256
1728a9665cc75d9e5edba1e0b96c60991e6ccf5a2a908386051805c6358234d5
SHA1
43baff3841c99e54f1bf538f75e325c613cd2f11

Softonic security commitment

masterpassword for Firefox has been thoroughly scanned by our advanced security systems and verified by industry-leading partners. This file comes from the official developer and has passed all our security checks, showing no signs of viruses, malware, or spyware.