Sandboxie 3.28

Sandboxie lets you browse the Web securely while keeping all your browsers functionality for active content
Sandboxie requires neither the disabling nor blocking of functions available to Web sites through the browser. Instead, Sandboxie isolates and quarantines the outcome of whatever the Web site may do to your computer, including the installation of unsolicited software.

There is no trade-off of functionality for security: the Web site can use the full range of active content tools, and if it uses these tools maliciously to install software or otherwise make changes in your computer, then these changes can be easily undone.
When you run a program on your computer, data flows from the hard disk to the program via read operations. The data is then processed and displayed, and finally flows back from the progam to the hard disk via write operations.
Sandboxie changes the rules such that write operations do not make it back to your hard disk.
Intercept changes to both your files and registry settings, making it virtually impossible for any software to reach outside the sandbox.
Traps cached browser items into the sandbox as a by-product of normal operation, so when you throw away the sandbox, all the history records and other side-effects of your browsing disappear as well.