Clearing cache and cookies in the container when closing Firefox

[qc0ekmlJS]

The “Clear cache and cookies when closing the browser” option is missing from the container settings.
Often there is a use case where you create a container for certain sites to track you less, and for such cases the option to automatically clear the cache is missing

Can you add a menu item “Clear cache and cookies when browser closes” in each container's settings?

[Jon]

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