If you are tech-savvy, you can technically force the browser to store its data in a specific folder (like on a USB) using the --user-data-dir flag in a Windows shortcut. However, this still requires the browser to be installed on the host machine to run the core application files.

: while the official Yandex Browser is a legitimate product, many third-party "portable" versions are flagged as high-risk malware. Security Warning: High Risk of Infection Multiple sandbox analyses from Joe Sandbox have identified files named Yandex.exe or portable variants as Joe Sandbox Threat Type : Frequently identified as an Information Stealer Malicious Actions

Alex stared at the flickering cursor. He was in a remote research station in the Ural Mountains, and the official workstation was locked down tighter than a submarine hatch. No installations, no admin rights, and the default browser was a relic from the early 2000s that couldn't even render a modern map.

Backing up your entire browser setup is as simple as copying a single folder to a cloud drive. Is There an Official Yandex Browser Portable Exe?