Skip to content
Firefox 148 Introduces SetHTML for Enhanced XSS Protection

Firefox 148 Introduces SetHTML for Enhanced XSS Protection

First seen 24 Feb 2026, 16:13 UTC • •

Article Content

Browse articles
ThreatCluster AI
ThreatCluster •March 12, 2026 at 16:10 UTC

Firefox 148 has implemented the new Sanitizer API, which allows web developers to sanitize untrusted HTML before inserting it into the DOM, thereby enhancing protection against cross-site scripting (XSS) vulnerabilities. This update marks Firefox as the first browser to adopt this standardized security feature, with expectations that other browsers will follow suit.

Start a free Starter trial for enhanced analysis

Ask AI about this cluster

Updated 213d ago How this analysis works

Timeline

2026-02-24
Firefox 148 released with new Sanitizer API for XSS protection

More articles in this cluster (5)