Site is not working properly in Firefox, javascript broken?

[anon(3463402)]

1. "Show Me More" button is dead, nothing happens when clicked.

2. Page reloads when you reply, or vote up/down comments.


I guess something's wrong with the javascript on your site. Please check it out and fix it.

Note: Works fine in Edge and mobile browsers...

 

[anon(3463402)]

Several of these are listed in console:

jQuery is not defined
$ is not defined
mbn_config.themes is undefined
Drupal is not defined
TypeError: NetworkError when attempting to fetch resource.