[exclusive] — Browser.cache.memory.capacity

: Stores data directly in your RAM. It is extremely fast but volatile, meaning it is cleared whenever the browser or computer restarts.

This setting is found in the ( about:config ). Step-by-Step Instructions

To get the most out of your memory cache, ensure the following related preferences are also set correctly in about:config : Browser.cache.memory.capacity

: Automatically determines the cache size as a percentage of your physical RAM. 0 : Disables the memory cache entirely.

: Set to false if you want to bypass the slower disk cache entirely and rely only on RAM. : Stores data directly in your RAM

Web browsers typically use two types of caches: and memory cache .

: Type browser.cache.memory.capacity into the filter box. Step-by-Step Instructions To get the most out of

: Sets a specific limit in KB. For example, 51200 would limit the cache to 50 MB. Recommended Values for Different RAM Sizes

While modern browsers are excellent at managing memory on their own, understanding browser.cache.memory.capacity empowers you to optimize your browsing experience to match your specific hardware and privacy needs. Firefox/Tweaks - ArchWiki

: Open a new tab, type about:config in the address bar, and press Enter. Click the button to "Accept the Risk and Continue".