Is Surflow Tab Manager: Tree View and Tags safe?

Organize open tabs into searchable workspaces, tree structures, and custom tags from the Chrome side panel.

This extension lets you group tabs into workspaces, nest related tabs in a tree, tag tabs with custom labels, and search or filter across open tabs. It can show tabs from all open windows together, move tabs between windows, sort tabs by age, open bookmark folders as tagged tab sets, and optionally add domain, age, or duplicate-tab tags. The store description says data stays in local browser storage, with only optional feedback sent if you choose to send it.