Jupyter notebook's annoying grey text auto-show

After running a cell, that cell will show gray texts; if I click on the cell, they will disappear. Anyone ever encounter something like this before?

I did not. Do you happen to have any extensions installed? What is the output of jupyter --version?

Same Problem Here, it is super annoying , Has anyone tried to solve it ?

In Background of output cells has turned grey · Issue #13385 · jupyterlab/jupyterlab · GitHub a similar issue was attributed to a browser extension. Do you have any browser extensions installed?

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It seems like the problem is the browser itself. You are right. I switched to Chrome and fixed the problem. Thank you so much.

I switched to Chrome and the problem is gone. You can try it yourself.