{3550f703-e582-4d05-9a08-453d09bdfdc6} 1.0+ 1.6a1 {ec8030f7-c20a-464f-9b0e-13a3a9e97384} 1.0+ 1.6a1 {e2fda1a4-762b-4020-b5ad-a41df1933103} Lightning 0.0.1+ An experimental calendar extension for Thunderbird Mozilla Foundation Calendar Squad