Browser.cache.memory.capacity

First, make sure browser.cache.memory.enable is set to true .

The browser.cache.memory.capacity controls the maximum size of the first layer . Browser.cache.memory.capacity

It only makes repeat loading of the same page during your current session faster. Your initial page load is always limited by network speed. First, make sure browser

Firefox uses a heuristic algorithm when browser.cache.memory.capacity = -1 : Browser.cache.memory.capacity

: If you have 16GB or more of RAM, increasing this capacity can speed up "Back" and "Forward" navigation by keeping more web elements ready in the fastest possible storage.

: Tells the browser to automatically determine the capacity based on your system's total physical RAM.