Pale Moon has been updated to version 28.8.4. The update is a small web compatibility and security update. Linux versions will follow shortly.
The update includes a DiD ("Defense-in-Depth") update. A DiD update is s a fix that does not apply to a (potentially) actively exploitable vulnerability in Pale Moon, but prevents future vulnerabilities caused by the same code, e.g. when surrounding code changes, exposing the problem, or when new attack vectors are discovered.
Release Notes
The update includes a DiD ("Defense-in-Depth") update. A DiD update is s a fix that does not apply to a (potentially) actively exploitable vulnerability in Pale Moon, but prevents future vulnerabilities caused by the same code, e.g. when surrounding code changes, exposing the problem, or when new attack vectors are discovered.
Release Notes