Firefox 65 for developers

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This article provides information about the changes in Firefox 65 that will affect developers. Firefox 65 is the current Nightly version of Firefox, and will ship on January 29, 2019.

Changes for web developers

Developer tools

Removals

HTML

No changes.

Removals

CSS

Removals

SVG

No changes.

Removals

JavaScript

Removals

APIs

No changes.

New APIs

DOM

DOM events

Service workers

The Response.redirect() method now correctly throws a TypeError if a non-valid URL is specified as the first parameter (bug 1503276).

Media, Web Audio, and WebRTC

Canvas and WebGL

Removals

Security

No changes.

Removals

Plugins

No changes.

Removals

Other

No changes.

Removals

Changes for add-on developers

API changes

Removals

Manifest changes

Removals

See also

Older versions

Document Tags and Contributors

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