In chrome, saving anything to your device can be blocked completely: chrome://settings/content/siteData Here's an extension to block at a per-site granularity

In chrome, saving anything to your device can be blocked completely: chrome://settings/content/siteData Here's an extension to block at a per-site granularity (despite it saying cookies, it blocks it all including local storage): https://chromewebstore.google.com/detail/disable-cookies/lkmjmficaoifggpfapbffkggecbleang https://chromewebstore.google.com/detail/disable-cookies/lkm...