Browser.cache.memory.capacity 🌟 🆕

Now go forth, open about:config , and tweak with confidence.

Decrease or zero out the memory cache to force Firefox to use the disk cache or network exclusively, freeing precious RAM for the operating system. Profile 3: The Developer or Tester Scenario: You are testing a progressive web app (PWA) or a single-page application (SPA). You need to ensure that a specific JavaScript file is always re-fetched from the network, not from a stale memory cache. Browser.cache.memory.capacity

Increase the capacity to store more assets in RAM, reducing reliance on the slower disk cache. Profile 2: The User on Constrained Hardware Scenario: You use an older laptop with only 2 GB of RAM. Firefox’s automatic mode attempts a 16 MB cache, but every tab you open pushes your system into swap memory (using the hard drive as fake RAM), causing the entire OS to freeze. Now go forth, open about:config , and tweak with confidence