See what landed recently in Firefox Nightly!

Starting with Firefox 145, Nightly and Early-beta builds can now find previously visited pages using Semantic History Search, which lets users recall sites with natural-language and concept-based queries, all processed locally for privacy. (Learn more)

Starting with Firefox 145, Nightly builds now support Storage-Access-Headers allowing servers to opt-in into un-partitioned cookies via HTTP headers if storage-access was granted prior with the Storage-Access-API.

Starting with Firefox 146, Nightly builds now support the Sanitizer API, which provides new methods for HTML manipulation. The element.setHTML() method enables developers to insert HTML content similarly to element.innerHTML, but without the security vulnerabilities such as cross-site scripting (XSS). A complementary method, document.parseHTML(), is also available for parsing HTML safely.

Starting with Firefox 146, Nightly builds now support the Navigation API. This API provides the ability to initiate, intercept, and manage browser navigation actions. It is a successor to previous web platform features such as the History API and window.location, which solves their shortcomings.

Starting with Firefox 145, support has been added for CSS module scripts, disabled by default using the preference layout.css.module-scripts.enabled. CSS module scripts allow for CSS scripts to be imported like ECMAScript modules using import attributes.

Starting with Firefox 145, Nightly builds now support CSS anchor positioning, which allows to tether elements together. The anchor-positioned elements can then have their size and position set relative to the size and location of the anchor elements to which they are bound.

Starting with Firefox 145, the Trusted Types API, primarily aimed at preventing cross-site scripting attacks, is now enabled in Nightly.