Environment:
Browser / Version: Firefox Nightly 102.0a1 (🦎 102.0a1-20220528091325), Firefox Beta 101.0.0-beta.6 (🦎 101.0-20220519220322)
Operating System: Google Pixel 5 (Android 12) - 1080 x 2340 pixels, 19.5:9 ratio (~432 ppi density), Samsung Galaxy S8 (Android 9) - 1440 x 2960 pixels, 18.5:9 ratio (~570 ppi density)

Steps to Reproduce:

1. Navigate https://www.ordinea.ro/universitatea-ovidius-constanta-face-angajari-vezi-ce-posturi-sunt-vacante-4/
2. Scroll down the page and tap "CONTINUA SA CITESTI" button.
3. Observe behavior.

Expected Behavior:
The entire article is revealed.

Actual Behavior:
Nothing happens, the entire article is not revealed.

Note:

1. With ETP - Standard the issue is not reproducible.
2. Screenshot attached.

This isn't breaking for me in the responsive design mode, but it does on my phone. That doesn't normally implicate ETP, so it might be a different webcompat issue. I'll have to dig into the remote debugger to find out.

Indeed, the moment I try to do some remote debugging, the problem goes away on my phone as well, so this is almost certainly not ETP related, but some race condition with the site's code (I see a document.write warning in the console as well). I'll move this to the webcompat queue for further diagnosis.

The "CONTINUA SA CITESTI" button is no longer available, the article is revealed entirely by default now.

Tested on:
Operating system: OnePlus 6 A6000 (Android 11)
Browser/Version: Firefox Nightly 111.0a1-20230207043534 / Chrome 109.0.5414.86

Closing this as invalid.