Browser.cache.memory.capacity [top] Jun 2026

For general browsing on a healthy system (4GB+ RAM), manually raising the value above the automatic setting rarely improves performance and may cause unnecessary memory waste.

By increasing the memory cache, you allow Firefox to store more pre-rendered versions of these heavy apps. Navigating between tabs becomes instantaneous. Scrolling through a long history within the same tab feels fluid because assets never leave RAM. Browser.cache.memory.capacity

But he was just a variable. He couldn't change himself. He needed the User. For general browsing on a healthy system (4GB+