I installed the 2.4.X version of the plugin. Didn’t help.
Errors on the page:
synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user’s experience. For more help, check http://xhr.spec.whatwg.org/.
The provided value ‘moz-chunked-arraybuffer’ is not a valid enum value of type XMLHttpRequestResponseType.
Error: stream must have data
