Sometimes, unpredictably, the browser stops working in a way that the page stops working, and trying to reload the page, open a new tab, or even save the content on a page, simply doesn't work. The singlefile extension fails, and I can't just disable it, and re-enable it, the browser won't let me do that, either. The browser's built-in save function won't even progress to completion. That is inconvenient when I'm trying to save chat, or some other ephemeral thing, that won't be available after restarting the browser. I don't want this to happen anymore. I don't want this situation to recur. I'm not sure what to do to prevent it in the future. I'm not sure what causes this mess. I don't know what else to say about it. Please tell me what I'm doing wrong, and how to fix this?

The browser seemed to be in the throes a crash, but it just wouldn't finish itself off. So I killed the main process, which I thought should trigger a crash report, but it didn't.