I use Firefox personally, but develop with Chrome. I have a hard time getting stack traces from Firefox reliably. Oftentimes one of the following occurs on Firefox:

There is no error, but the page won't load. There is an error, but the error message is generic. There is an error message, but no stack trace.

When I switch to chrome, I always get the error and stack trace without any further code modifications.

I make sure to clean up for Firefox in releases. But it's just impossible to develop without error messages and traces. I'm on Ubuntu using the latest stable releases.