1822176 - Enable the `prefers-reduced-transparency` media query

Status: NEW

(Core :: CSS Parsing and Computation, task)

Description

[Oliver Medhurst [:canadahonk]]

Soon we will have implemented the prefers-reduced-transparency media query behind it's own pref (layout.css.prefers-reduced-transparency.enabled), disabled by default. This bug is for discussing whether/when to ship, since we are the first to implement and it could be a fingerprinting risk.

Comment 1

[Oliver Medhurst [:canadahonk]]

Regarding MDN/devdocs with prefers-reduced-transparency, I made two PRs as it is currently completely missing from MDN:

• BCD: https://github.com/mdn/browser-compat-data/pull/19135
• Content: https://github.com/mdn/content/pull/25289

Comment 2

[Luke Warlow]

Fwiw there's an in progress implementation in Chrome now so Firefox won't be the only engine with an implementation soon.

Comment 3

[Oliver Medhurst [:canadahonk]]

Chromium intent to ship: https://groups.google.com/a/chromium.org/g/blink-dev/c/EiZ2vlPy9xs

Comment 4

[Luke Warlow]

This is shipping in chrome 118.

Comment 5

[Oliver Medhurst [:canadahonk]]

This is now shipped in Chrome stable. Also a neat explainer blog post: https://developer.chrome.com/blog/css-prefers-reduced-transparency/