Hi everybody,

I use Chrome as my default browser and our application works fine in it. However, in Edge and in FireFox I see lots of errors and pages do not load.

In Edge they seem to refer to arrow functions. In FireFox our main application object doesn't load, so everything else falls apart.

My questions are:

1. How can I find which versions of Edge or FireFox I have installed?

2. According to this https://caniuse.com/#feat=arrow-functions they are supposed to be supported in Edge and FireFox but I see lots of errors. Do I need to install something?

Thanks in advance.