Two options here - make official Firefox ESR package (see bug 1676164) or convert xul-ext-ubufox to WebExtension.
** Tags added: artful trusty xenial zesty -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to ubufox in Ubuntu. https://bugs.launchpad.net/bugs/1711778 Title: Convert to web extension Status in Ubufox Extension: Confirmed Status in ubufox package in Ubuntu: Confirmed Bug description: Firefox 57 and later will only allow to load web extensions [1][2]. This add on is currently a legacy extension, and Firefox will refuse to load it starting with Version 57. Therefore, this extension needs to be ported [3]. Current nightlies of Firefox already only accept to load WebExtensions [4]. [1]: https://blog.mozilla.org/addons/2016/11/23/add-ons-in-2017/ [2]: https://bugzilla.mozilla.org/show_bug.cgi?id=1336576 [3]: https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Porting_a_legacy_Firefox_add-on [4]: https://bugzilla.mozilla.org/show_bug.cgi?id=1388946 To manage notifications about this bug go to: https://bugs.launchpad.net/ubufox/+bug/1711778/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp