About Proton Pass
Proton Pass is a good fit if you already use Proton or care about privacy first. It is the password manager from the company behind Proton Mail and Proton VPN. The extension fills logins, saves new ones and generates passwords, and syncs with Proton's mobile apps and web app. It is listed for Chrome, Firefox, Edge and Safari, and Proton also offers a Brave download.
The free plan, Proton Free, is a real one with unlimited logins and devices, not a trial. Paid plans (Pass Plus, Pass Family and Proton Unlimited) add features. The extension's source is public in Proton's WebClients repository on GitHub. Cure53's July 2023 report called the overall security state commendable, and Proton said all findings were resolved except one medium-severity Android issue. A second audit by Recurity Labs, published on 12 May 2026, rated the posture "well above par", with no remote exploits or encryption bypasses found.
The trade is a younger product and a shorter track record than Bitwarden's, so it is worth reading the audit reports yourself. You also need a Proton account, which is free, and Opera users install the Chrome version from the Chrome Web Store. If you want your passwords inside a privacy-focused ecosystem, this is a strong choice.
Pros and cons
- Free plan with unlimited logins and devices
- Extension source code is public
- Audits in 2023 (Cure53) and 2026 (Recurity Labs) covered the extensions
- Fits neatly with other Proton services
- Younger product, with a shorter track record than Bitwarden
- No Opera Add-ons listing; Opera users install the Chrome version
- Some extras need a paid plan
Permissions
It requests access to all websites so it can detect login forms and fill them, plus active-tab and navigation access. Clipboard, native messaging and a few other permissions are optional and requested only if you use the related features.
