Browser.cache.memory.capacity 💯

, some users report that it feels increasingly obsolete as browsers move toward more aggressive, automated multi-process architectures. Furthermore, tools like the Firefox Cache Monitor (accessed via about:cache?device=memory

No. Changing the value does not clear existing cache entries. Use about:preferences#privacy → "Clear Data" to clear caches. Browser.cache.memory.capacity

Adjusting this setting involves balancing resource consumption against responsiveness. , some users report that it feels increasingly

For 99% of Firefox users, the default value ( -1 ) is the correct choice. Firefox’s automatic cache management has been refined over two decades to balance speed and memory usage effectively. Firefox’s automatic cache management has been refined over

Capacity braced himself. Was this the end? Was he being deleted?

Increasing this value can speed up page navigation (especially the Back/Forward buttons) by keeping recently visited pages in RAM instead of reloading them from the slower disk or the internet. How to Configure It

: Users with 32GB+ of RAM often manually crank this up (e.g., to 524288 for 512MB) to ensure that even complex, media-heavy tabs never have to "re-fetch" data from the slower SSD. Why People Change It The "story" usually follows one of two paths: