Kaspersky Password Manager Extension Firefox -

If you have Kaspersky Total Security or Kaspersky Internet Security (version 21+):

Unlike some bloated security extensions, Kaspersky is lightweight on Firefox. In benchmark tests, it adds approximately 80-120ms to page load times when auto-filling—imperceptible to human interaction. Memory usage hovers around 35-50MB, which is reasonable compared to LastPass (60MB+) and Bitwarden (30MB). Kaspersky Password Manager Extension Firefox