ZK-JPEG is a cryptographic tool that uses zero-knowledge proofs to verify image provenance and transformations while surviving JPEG compression. It enables camera attestation and proves that images have been correctly compressed from committed inputs, addressing limitations of prior zero-knowledge approaches that fail under lossy encoding.
Mozilla released Firefox 156 with a 45 percent speed improvement for opening PDFs, along with bug fixes for DNS over HTTPS, VPN connectivity, and better memory/CPU handling for large JPEG files. The update addresses various stability issues across components for improved browsing reliability.