The problem is that the new API are not and can not be as powerful as the XUL based system. It is impossible.
The new Chrome Replica Web Extensions can never be as powerful as the old system.
The new Chrome Replica Web Extensions can never be as powerful as the old system.
I have used Firefox since Version 1, I was beta testing Firefox back when mozilla suite was still the focus
I never adopted chrome, and I do not like the User Experience or the limitation of Chrome.
From EME/DRM, to Web Extensions, to who knows what else, Mozilla is killing the identiy of FF all in the name of chasing market share it will never get back.
FF should be focusing on privacy, stability, and the ability to customize the browser for you. Instead they are focusing on Mainstream placation, performance, DRM, etc
Mozilla has made it clear they no longer want people like me as users, that is fine after over a decade of support I will see myself out...
As long as I can still do that, it should be acceptable. Ideally this would be in the main version, though.
It will end up being a far cry from what we have today and more like the Ridiclous and unusable "SideTree" menus that are available in chrome.
No TreeStyle Tabs, no FF for me. that is non-optional. I will switch full time to vivalidi that has a less feature complete vertical tabs built in.
There are also many other Addons I use today that look like their are going to be discontinued post FF 57 for API or other reasons.