5 Ways Firefox Extension New Tab Pages Are Killing Your Browser Performance

The article highlights five common mistakes in Firefox new tab extensions that can slow browsing, including blocking storage, early network calls, repeated fetches, heavy assets, and inefficient timers.

It recommends async loading, caching API data, and lazy-loading resources to reduce CPU, network, and rendering overhead.

Using lighter assets and better timing methods can improve responsiveness and avoid clock drift on frequently opened new tab pages.

Because new tab pages open so often, even small inefficiencies can noticeably hurt Firefox performance and user experience.