You can view your real-time memory cache usage and current maximum limit by typing about:cache in the address bar. Look for the section to see: mozillaZine Number of entries: How many items are currently stored. Maximum storage size:
This comprehensive guide will break down exactly what browser.cache.memory.capacity is, how it differs from disk caching, the mathematics behind its default behavior, and how you can tweak it to create a smoother, faster browsing experience. Browser.cache.memory.capacity
You don’t have to guess if your change worked. Firefox provides an internal tool to inspect the cache. You can view your real-time memory cache usage
Stores data in your RAM for near-instant access during a browsing session. You don’t have to guess if your change worked
To change this capacity, you must access the advanced configuration editor: about:config in the Firefox address bar and press Enter. Search for browser.cache.memory.capacity If it doesn't exist, you can create it as a new preference. Enter your desired value in for 512 MB). browser.cache.memory.enable for these changes to take effect. mozillaZine Verification
When set to -1 , Firefox uses a dynamic algorithm. It typically allocates:
Open Mozilla Firefox. Step 2: Type about:config into the address bar and press Enter. Step 3: Click "Accept the Risk and Continue" (warning: advanced settings are dangerous). Step 4: In the search bar, type browser.cache.memory.capacity . Step 5: You will see one of two things: