Firefox addons will now be only on WebExtensions

https://blog.mozilla.org/addons/2016/11/23/add-ons-in-2017/

By the end of 2017, and with the release of Firefox 57, we’ll move to WebExtensions exclusively, and will stop loading any other extension types on desktop. To help ensure any new extensions work beyond the end of 2017, AMO will stop accepting any new extensions for signing that are not WebExtensions in Firefox 53. Throughout the year we’ll expand the set of APIs available, add capabilities to Firefox that don’t yet exist in other browsers, and put more WebExtensions in front of users.

With WebExtensions: Any extension must be signed and approved by AMO(since firefox 48), even unlisted and private.

What? Why? This is totally retarded, they should at least allow you to add your own public keys in a whitelist.

>>7
Thankfully there is already a fork that does this. https://en.wikipedia.org/wiki/Pale_Moon_%28web_browser%29