Quiet LetterCase Panel от Salah

Quiet LetterCase Panel adds a minimal toolbar popup that helps users quickly convert text to UPPERCASE, lowercase, or Capitalized words.

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.