I checked your post history, are you talking about this post from a year ago? https://programming.dev/post/749664 (that one has only a couple downvotes which usually is standard as most posts get a couple downvotes though)
Its the kind of thing thats very difficult to solve since not everyone gets it and seems like it pops up randomly (havent been able to clearly reproduce it yet)
Were you also on mobile firefox using the site? Or was the firefox you were using on pc
which firefox, stable beta or nightly