Thank you very much for your review.

Those are certainly very good observations and suggestions. I will
work on it as soon as possible.

This is what I have for the moment:

Closest Clickable Extension

Make web browsing easier and more efficient by visually highlighting the closest clickable element to your mouse pointer—at all times. This add-on draws a subtle line and uses a virtual cursor to guide your attention, making it simple to identify where your next action will have effect. If you double-click anywhere that is not directly on a clickable element, the add-on will automatically trigger a click on the nearest one.

New in version 3.0:
Significant performance improvements for a smoother and more responsive experience, even on complex web pages.
Fully configurable: Includes a configuration page where you can adjust line width, color, opacity, and manage domain blacklists to control where the extension is active.

Features:
Highlights the closest clickable element to your pointer at all times.
Simulates a click on the nearest clickable element when you double-click outside any clickable.
Customizable visual appearance (colors, width, transparency).
Blacklist domains where you do not want the extension to be active.
Minimal performance overhead and seamless integration with modern browsers.

This extension is ideal for users who want enhanced visual feedback while navigating and interacting with web content.