Quiet CharShift Panel от Rychy

Quiet CharShift Panel adds a minimal toolbar popup that lets users enter text and apply a simple character shift by a numeric step.

The extension runs fully offline and does not request any browser permissions.
It does not collect, store, or transmit any user data, and it does not interact with websites or browsing activity.

All functionality is bundled locally inside the add-on package, making it lightweight, privacy-friendly, and easy to review.