If you don't want to mess with file extractions, the approach is the cleanest "lightweight" version.
Portable apps don't always auto-update as reliably as installed ones. Check the Proton website regularly for new versions to ensure you have the latest security patches. Final Thoughts proton mail desktop app portable
Open Proton Mail in a portable browser (like or Firefox Portable ). If you don't want to mess with file
For those who prefer using a third-party client like , the Proton Mail Bridge is the key. The Bridge acts as a local IMAP/SMTP server that decrypts your mail on the fly. Final Thoughts Open Proton Mail in a portable
Look for the folder containing the core files (usually under lib/net45 or similar in Electron apps). Move to USB: Copy these files to your portable drive.
Because the browser itself is portable, all your session data and the "app" interface stay within the portable browser's folder on your USB drive. Security Best Practices for Portable Users
If you lose your thumb drive, anyone can access your local cache. Use a hardware-encrypted drive or a tool like VeraCrypt to protect the partition.
If you don't want to mess with file extractions, the approach is the cleanest "lightweight" version.
Portable apps don't always auto-update as reliably as installed ones. Check the Proton website regularly for new versions to ensure you have the latest security patches. Final Thoughts
Open Proton Mail in a portable browser (like or Firefox Portable ).
For those who prefer using a third-party client like , the Proton Mail Bridge is the key. The Bridge acts as a local IMAP/SMTP server that decrypts your mail on the fly.
Look for the folder containing the core files (usually under lib/net45 or similar in Electron apps). Move to USB: Copy these files to your portable drive.
Because the browser itself is portable, all your session data and the "app" interface stay within the portable browser's folder on your USB drive. Security Best Practices for Portable Users
If you lose your thumb drive, anyone can access your local cache. Use a hardware-encrypted drive or a tool like VeraCrypt to protect the partition.
