We are making Sandboxie a free tool, with plans to transition it to open source
Are there any Linux equivalents to Sandboxie?<p>For example, I'd like an easy way to run Firefox in a sandbox under Linux, without the overhead of running a full VM (which is just too resource intensive on my old, slow laptop), I'd like to be able to pull out files that Firefox downloads from the sandbox, and then delete the sandbox when I'm done.  Also, Sandboxie can force particular apps to start sandboxed.  All that is pretty easy to do from Sandboxie and is 99% of what I use Sandboxie for.