It's official: Moving forward, Mozilla will be disabling legacy extensions by default in Firefox Nightly, the Alpha (think pre-beta) version of the Firefox web browser [1]. What does this mean? Basically, Mozilla is proceeding full-steam ahead with its plan to completely remove support for XUL extensions from Firefox - in November, any extensions you use that are XUL-based will just stop working once your Firefox install updates to version 57. What can we do? Show Mozilla that this move will leave many loyal users, including you!, in the dust. Tweet them, email them, share this petition - whatever you can think of. Getting them to reconsider will be tough, but it isn't over until it's over. [1] https://mail.mozilla.org/pipermail/dev-addons/2017-August/003059.html