Firefox

Firefox 59 for developers

Draft
This page is not complete.

This article provides information about the changes in Firefox 59 that will affect developers. Firefox 59 is the current Nightly version of Firefox, and will ship on March 5, 2018.

Changes for Web developers

Developer Tools

No changes.

HTML

No changes.

CSS

No changes.

SVG

No changes.

JavaScript

No changes.

APIs

New APIs

No changes.

DOM

No changes.

DOM events

No changes.

Media and WebRTC

No changes.

Canvas and WebGL

No changes.

HTTP

No changes.

Security

No changes.

Plugins

No changes.

Other

No changes.

Removals from the web platform

HTML

No changes.

CSS

No changes.

APIs

No changes.

SVG

No changes.

Changes for add-on and Mozilla developers

WebExtensions

No changes.

See also

  • Site compatibility for Firefox 59

Older versions

Document Tags and Contributors

 Contributors to this page: Sheppy
 Last updated by: Sheppy,