Firefox 2.0.0.15 – Released on July 1st
Firefox 2.0.0.16 – Should be pushed out to Beta channel this coming week with a release on July 15th
Firefox 3.0.1 – Also to be pushed out to Beta channel this coming week with an estimated release on July 15th
Firefox 3.1 – Preliminary draft released in early June. No other information (build or scheduling) since then.
Thunderbird 2.0.0.15 – Abandoned due to the upcoming Firefox 2.0.0.16 release.
Thunderbird 2.0.0.16 – Version bump to keep in line with newest Firefox 2.0.0.X upcoming release. Contingent on the release of Firefox 2.0.0.16. Builds should start this week with a tentative (dependent on Firefox 2.0.0.16) release date of July 24th.
Thunderbird 3.0a2 – Code freeze scheduled later this week on July 8th. No other scheduling information available at this time.