Can you show the issue, provide steps, and links to example items?

for example, go here: https://www.amazon.com/AURSINC-NanoVNA-H-Vector-Network-Analyzer/dp/B07Z5VY7B6/ref=sr_1_3?crid=3EUWSN1ZC99Z0&keywords=nanovna&qid=1704711493&sprefix=nanovna%2Caps%2C191&sr=8-3&ufe=app_do%3Aamzn1.fos.006c50ae-5d4c-4777-9bc0-4513d670b6bc&th=1

and try and drop list the item. you will get a honey box (don't know what else to call it) and there will be a required drop down list you must open and select which color item you want in order to drop list it. Try to open the drop down list, it won't open under Linux Firefox. This has been an issue for quite some time over multiple versions of Firefox, at least back as far as version 103 or before

The color choice dropdown list works for me.

Does it still happen with all other extensions disabled?

What OS and version of firefox are you using?

Works for me to on the same OS as you.  ;-))

Operating System: openSUSE Tumbleweed 20240107 KDE Plasma Version: 5.27.10 KDE Frameworks Version: 5.113.0 Qt Version: 5.15.12 Kernel Version: 6.6.9-1-default (64-bit) Graphics Platform: X11 Processors: 12 × Intel® Core™ i7-9850H CPU @ 2.60GHz Memory: 125.1 GiB of RAM Graphics Processor: Mesa Intel® UHD Graphics 630 Manufacturer: HP Product Name: HP ZBook 17 G6

Are you on X11 or Wayland? What desktop?

I am using X11. It has to be something in my firefox profile if it work for you under X11. I disabled every ad on except honey and no joy. I have cleared the cache and no joy. I do not know how to debug this further

Well, i deleted my old profile and created a new one and now honey works

Great. Mark this issue as resolved and have a great day.  ;-)