Mozilla.MaintenanceService 149.0.2rc1

Standalone installer for Mozilla Maintenance Service, a tool used by Mozilla to more easily update Firefox and Thunderbird installations.

Standalone installer for Mozilla Maintenance Service, a tool used by Mozilla to more easily update Firefox and Thunderbird installations. The installer comes from Mozilla's well-hid but publicly available "Release Candidates" builds of Firefox, which are likely between Stable and Beta in their channel system, and which have portable Firefox builds available.