No it's not abandoned, just had an update to 184.108.40.20602
For anyone (like me) still using XP and wanting to use pale moon. http://binaryoutcast.com/software/projects/pm4xp/
Avira service host was not started, started it via services.msc and the issue went away.
Anyone else having an issue with the taskbar icon no longer having any options but open avira and it only shows app store and manage apps? Had to...