Browser.cache.memory.capacity !new! [EASY – 2026]

Based on the preference name Browser.cache.memory.capacity , this appears to be a low-level browser setting (historically from Mozilla/Firefox) that controls the maximum size of the in-memory cache.

: A custom limit set in Kilobytes (KB) . For example, entering 524288 would cap the memory cache at 512 MB. How to Modify It Open your browser and type about:config in the address bar. Search for browser.cache.memory.capacity . Double-click the entry and enter your desired value in KB. Browser.cache.memory.capacity

"If we don't drop data," DocShell screamed, "the whole process is going to crash! The User will lose the form data in Tab 1!" Based on the preference name Browser

Altering this value is a classic engineering trade-off between and resource contention . Based on the preference name Browser.cache.memory.capacity