((link)) - Browser.cache.memory.capacity
In the architecture of modern web browsers, specifically within the Gecko engine (Firefox), browser.cache.memory.capacity
browser.cache.memory.enable(Boolean): This acts as a master switch. If set tofalse, the memory cache is turned off entirely, regardless of the capacity set.- Smart Sizing: The preference
browser.cache.memory.smart_size.enabled(often removed or hidden in newer Firefox versions) controls whether the automatic (-1) logic is active. In modern Firefox, setting the capacity to-1effectively re-enables smart sizing.
To revert:
Increasing this value can make "Back" and "Forward" navigation feel near-instant, as pages are kept in RAM rather than being re-fetched from the disk. 5. Troubleshooting If you search for the preference and it does not appear , you can create it: Right-click anywhere on the about:config browser.cache.memory.capacity Enter your desired value (e.g., for auto). , such as disabling the disk cache or managing multi-process (e10s) Browser.cache.memory.capacity
Users can modify browser.cache.memory.capacity to suit their specific needs. The values are measured in kilobytes (KB). In the architecture of modern web browsers, specifically
"browser.cache.memory.capacity" encapsulates the trade-off between speed and memory usage: allocating more RAM to caching yields faster resource reuse but consumes system memory. While it played a useful role historically for power users and testers, modern browsers generally handle cache sizing automatically and provide higher-level controls (cache-control headers, service workers) for web developers to influence caching behavior. Users and administrators should prefer adaptive defaults and targeted changes only after performance profiling. browser