React dev tools - Deactivate "break on warnings"
Solution 1:
Go to Chrome Devtools → in the Chrome console, go to Component → Click on Settings → unset Break on Warning. Do the same in Profiler → Settings → unset Break on warning.
@cadoman pointed check and then uncheck to make work for sure.
P.S: Image from https://github.com/facebook/react/issues/19308#issuecomment-656669792
Solution 2:
Based on pull request DevTools: Make break-on-warn off by default #19309 it seems it's a bug.
The Break On Warnings box was unchecked for me and it still would break. Removing and readding the extension to force an update fixed it for me.
I don't know of another way to force Chrome to update an extension outside of its regular schedule.
Solution 3:
Go to your ReactDev tools in the tab Debugging and disable "Break on Warning".
I think this new behavior started today with this new PR: https://github.com/facebook/react/pull/19048