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Privacy and security

Encryption

Use encryption features to keep yourself and your data secure.

Oblivious HTTP (OHTTP) explained

One of the technologies used in Firefox to enhance online privacy is Oblivious HTTP (OHTTP). Learn what it is, how it works and how it helps protect your data.

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HTTPS-First upgrades to secure connections

From version 136, Firefox implements HTTPS-First and always attempts to connect securely. If a secure connection fails it falls back to an insecure connection.

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