Changed home page URL to point to new SourceForge website
Changed version number to 2.2pre; changed minVersion to 24 (current Firefox ESR version)
Removed "extensions" from the overlay object chain to satisfy Mozilla Add-ons reviews
Removed "extensions" from the overlay object chain to satisfy Mozilla Add-ons reviews
Removed the attempted fix in 2.1.1 for pending browser tabs
Bug fix: Tab titles display as "null" if Send Tab URLs invoked after browser session was restored (issue #1)