1.17.4 - buttons stopped appearing in Posts

I am on Firefox 114.0.1 & Windows 10 Home 64bit 19045.2965

same

Sadly same for me... Works on stories but not on main feed and posts.

I actually downgraded to v1.17.3 and that works for me!

Except for the saved post, it works on my PC with Firefox (114.0.1).
So it's hard to debug from my site, but I think 1.17.3 working is an important clue. I will try to address this by comparing 1.17.3 and 1.17.4.

If you have any other findings, welcome to append those in this thread.

Yeah the issue is on Firefox. It works fine on Google Chrome. It works again downgrading to v1.17.3. I'm on Firefox 113.0.1

To fix this in Firefox, you have to enable the "has" selector, which was added in 1.17.4. It is not currently a supported feature, but you can enable it prior to official support:

about:config
layout.css.has-selector.enabled = true

More info:
https://connect.mozilla.org/t5/ideas/when-is-has-css-selector-going-to-be-fully-implemented-in/idc-p/33147/highlight/true#M19097

I have removed the has selector from 1.17.6. Please update and try again.