This is a bug and an inconvenient thing to ask for.

It doesn't matter if people have been upgrading for a while or not. If
their boot is broken after an automatic upgrades they should do a manual
upgrade anyway.

We've decided to enable hidden mode since
commit:e571e07e.

Fix-committed: #10506

This branch is just kytv/feature/10739-add-icedove-to-launcher rebased
on stabl e (since kytv's was based on devel).

Fix-committed: #10739

Fix-committed: #9713

Fix-committed: #10751

Fix-committed: #10458

file.

Otherwise people will get the notification every time they start Icedove
during the 1.8 lifetime.

Will-fix: #10458

Refs: #10458

Will-fix: #10751