Browser.cache.memory.capacity Jun 2026

Editing advanced preferences can cause browser instability. Follow these steps carefully.

| Desired Cache Size | Value in KB | Use Case | | :--- | :--- | :--- | | Disabled (No memory cache) | 0 | Debugging / ultra-low RAM devices | | Very Small (8 MB) | 8192 | Legacy systems with 1-2 GB RAM | | Default Dynamic | -1 | | | Small (32 MB) | 32768 | Systems with 2-4 GB RAM | | Moderate (64 MB) | 65536 | Systems with 4-8 GB RAM | | Large (128 MB) | 131072 | Systems with 8-16 GB RAM | | Extreme (256 MB) | 262144 | Systems with 16-32 GB RAM | | Insanity (512 MB) | 524288 | Systems with 32 GB+ RAM and specific workflows | Browser.cache.memory.capacity