Does not work properly from Firefox extension content script

[resurtm]

Hi @marcj,

First of all thanks for the nice JS library! :)

I'm having the issue when it does not work properly inside of the Firefox browser extension content script. With Chrome everything is absolutely fine. It could be fixed just like described here:

Semantic-Org/Semantic-UI#3855

I can help you with testing and making sure your fix will work properly.

Thanks!