📃 June 2014 release notes

New in Firefox

The following features are now available in Firefox:

background-blend-mode: The background-blend-mode CSS property blends an element's background image and background color using blend modes like multiply, difference, or color.
2D canvas opacity: The optional alpha parameter of a 2D canvas's getContext() method sets whether the canvas has an alpha transparency channel. If set to false, then this permits the browser to optimize compositing for an opaque canvas.
OES_texture_half_float_linear WebGL extension: The OES_texture_half_float_linear extension for WebGL 1.0 contexts adds linear filtering with half floating-point pixel types for textures.
WEBGL_color_buffer_float WebGL extension: The WEBGL_color_buffer_float extension for WebGL 1.0 contexts adds the 32-bit floating-point type RGBA32F as a color-renderable format.

The following features are now available in Firefox for Android:

2D canvas opacity: The optional alpha parameter of a 2D canvas's getContext() method sets whether the canvas has an alpha transparency channel. If set to false, then this permits the browser to optimize compositing for an opaque canvas.
WEBGL_color_buffer_float WebGL extension: The WEBGL_color_buffer_float extension for WebGL 1.0 contexts adds the 32-bit floating-point type RGBA32F as a color-renderable format.
WEBGL_compressed_texture_etc1 WebGL extension: The WEBGL_compressed_texture_etc1 extension for WebGL 1.0 and 2.0 contexts adds the ETC1 compressed texture format to compressedTexImage2D() and compressedTexSubImage2D().