Speed Tweaks is a Firefox addon designed to optimize your browsing experience through a variety of speed-enhancing features. Users can access a straightforward toolbar popup that allows them to activate any of the seven available tweaks. These tweaks include options for blocking ads, enabling DNS prefetching, and preventing images from loading, all aimed at improving overall browser performance. Each tweak can be enabled individually, providing users with the flexibility to customize their browsing experience according to their preferences.

In addition to ad blocking and image management, Speed Tweaks offers functionalities such as speeding up page rendering during scrolling, loading mobile versions of websites, discarding inactive tabs from memory, and clearing the browser's cache. This subscription-based addon is tailored for users seeking a more efficient browsing experience, although its performance may vary based on the browser version and platform used. Users are encouraged to report any bugs through the designated form on the addon’s homepage.