Firefox 95 for developers

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This article provides information about the changes in Firefox 95 that will affect developers. Firefox 95 is the current Nightly version of Firefox, and will ship on December 7, 2021.

Changes for web developers

Developer Tools

HTML

Removals

CSS

Removals

JavaScript

Removals

HTTP

Removals

Security

Removals

APIs

DOM

Media, WebRTC, and Web Audio

Removals

WebAssembly

Removals

WebDriver conformance (Marionette)

Removals

Changes for add-on developers

Removals

Other

Older versions