A site has a popup window where you can send a message to someone. After the message is sent, the popup window closes. I'd like to see the requests made in the Firefox Developer window, but it closes when the popup closes. Is there a way to either keep the popup open or to keep the Dev tools open? This question is similar to this question about Chrome dev tools.
You can use the Firefox Debugger to add an Event Listener for the Load > load event. In my case this prevented closing the window. Also see https://stackoverflow.com/a/62011428/1959568