Update: I got fed up with the bug again and decided to reinstall firefox. On reinstall it prompted me to “Clean” firefox instead. And apparently that helped.

I dont think so. I think i had one hacs card, but ill try removing some and see if that changes anything. But somewhat pretty sure that i didnt change anything when it started breaking.

Weird that it just randomly started after it was fine for so long. Oh well thanks.

Interesting suggestion. I tried it and sadly it didnt help. Thanks for the idea.

No there its also broken, also not when disabling all extensions for private windows. Also provided some more information in another comment.

As suggested by the other comment I tried a private window and disabled all extensions in private windows and it still has the same issue.

Interestingly I just noticed that it happens on all dashboards. The third one being just a vertical stack with 2 sensor entities. So its also not that specific configuration.

I also tried:

• Deleting all cookies/cache
• Downgrading to an older version/upgrading to latest homeassistant

While typing this I tested it on firefox on another machine (linux in that case) and there it works without problems. But i have all add-ons synchronized between them. So im out of ideas :D.