[Firefox Developer Edition]

Alright, thanks.

[Firefox Developer Edition]

I am trying to install the extension but once I try to install I get an error message.

I tried this

https://support.kaspersky.com/kpm-for-windows/settings/14258

The error says "The add on could not be downloaded because of a connection failure".

I did the same with the regular version of Firefox and it worked, but not in the Developer Edition.

How can I install it? I tried copying the files from the other profile, but the extension did not open.

Thanks