Is Popup Tab Switcher safe?

Switch between recently active tabs with an Alt+Y popup shortcut.

This extension shows a popup of your last active tabs when you use its shortcut, letting you cycle through them and switch to the selected tab. When you close the active tab, it returns you to the previously active tab instead of the nearest tab. It may not show the popup on Chrome Web Store pages, special Chrome pages, unfocused pages, or file URLs unless file access is enabled.