FF does have a sandbox w/some versions https://wiki.mozilla.org/Security/Sandbox...

		hackermailman on Feb 11, 2017 \| parent \| context \| favorite \| on: Basic Security Precautions for Non-Profits and Jou... FF does have a sandbox w/some versions https://wiki.mozilla.org/Security/Sandbox#Current_Status Or try Firejail https://firejail.wordpress.com/ (Linux) or possibly Sandboxie on Windows https://www.sandboxie.com/