From:  Jorge Villalobos <jorge@mozilla.com>
Date:  15 Oct 2015 00:08:06 Hong Kong Time
Newsgroup:  news.mozilla.org/mozilla.announce.compatibility
Subject:  

Breaking changes in let and const in Firefox Nightly 44

NNTP-Posting-Host:  63.245.214.181

Hello,

Please read the blog post below regarding some breaking JS syntax
changes introduced in Firefox 44.

https://blog.mozilla.org/addons/2015/10/14/breaking-changes-let-const-firefox-nightly-44/

Regards,

Jorge