Firefox 95 Rolls Out With New ‘RLBox’ Isolation Feature


Dubbed RLBox, the new sandboxing technology has been developed in collaboration with academics at the University of California San Diego and the University of Texas and is meant to complement existing protections by isolating subcomponents.

To keep users protected from web attacks, browsers run sites in sandboxed processes, but adversaries attempt to chain flaws to escape the sandbox and compromise the victim device.

With RLBox, third-party libraries prone to attacks are also isolated from the rest of the browser, in a fine-grained software sandbox. Thus, in addition to isolating websites in their own processes, the browser attempts to protect from potentially buggy subcomponents.