# Enable Secure Browser Caching

Enable secure data caching in the browser to improve page reload performance by avoiding extra round trips to the server.

This setting is selected by default.

:::warning
Disabling secure and persistent browser caching has a significant negative performance impact on Lightning Experience. Only disable in these scenarios.

- Your company’s policy doesn’t allow browser caching, even if the data is encrypted.
- During development in a sandbox or Developer Edition, you want to see the effect of any code changes without emptying the secure cache.
:::

Secure and persistent data caching isn't available for Salesforce mobile app.

To disable secure data caching:

1. From Setup, enter `Session` in the Quick Find box, and then select **Session Settings**.
2. Deselect the checkbox for “Enable secure and persistent browser caching to improve performance”.
3. Click **Save**.