Comment by scrollaway

The new extension system was announced years in advance, including the warning that XUL addons would eventually be deprecated.

This design decision is behind a large part of the performance improvement in 57.

Yes I'm sad, I lost some of my favourite addons as well. But this move was announced well in advance and it had a serious technical reason behind it.

In a difficult situation, Mozilla made a tough decision that is good in the long run and that benefits all its users. Crying "fork!" over it is so blind it leaves a bad taste in my mouth.

> So if someone forks over 1 change or 10 they are still libre to do it, or is that passe?

It's nonsense. Doesn't mean they can't do it, doesn't mean it's not nonsense. Furthermore, in some situations, forks can be harmful to the overall health of an already fragile ecosystem. They're not free of externalities.