[robinhood]

Maintaining a LTS release while focusing on an entirely new technology with a limited number of devs available is an engineering nightmare. They have to choose their battles. The performance of the old Firefox was really bad compared to competitors and this technical debt wasn't sustainable on the long term. I'm happy that they've made this bold move (on the big risk of frustrating some users (rightfully so)), and happy that they rebuild a better browser for all of us (and I'm sure they will come back in the future with the same flexibility for addons).

[John_KZ]

>and I'm sure they will come back in the future with the same flexibility for addons

No they won't, they have been very clear on this matter. Web Extensions are crippled compared to NPAPI. You can't even disable javascript with them.

[the_grue]

They are already maintaining FF 52 LTS (actually, in Mozilla terminology it's called ESR) They should've calculated this in advance and made FF 56 LTS. They could still do it now if they wanted...