Ultimate Speed Booster (Advanced) is a powerful Firefox extension designed to significantly enhance web page loading and rendering speed through advanced optimization techniques. It provides a smoother and faster Browse experience by intelligently managing resources, fonts, and scripts, without resorting to ad blocking or traditional lazy loading. Key features include: Font Optimization: Ensures faster text display with a fallback font while the main web font loads, preventing invisible text. JavaScript Deferring: Delays non-essential script execution, allowing primary page content to load and render quicker. DOM Cleanup: Removes unnecessary elements and comments from the HTML, reducing browser processing load. DNS & Resource Prefetching: Proactively resolves IP addresses for required domains and loads potential future resources in the background. Smart Caching: Intelligently caches common static resources of websites (like logos, shared CSS/JS) for faster loading on subsequent visits. Interaction Optimization: Aims to improve browser responsiveness to scrolls, clicks, and touches by optimizing event listeners. Experience a faster and more enjoyable web with Ultimate Speed Booster (Advanced). Customizable settings are available via the extension's popup window.