The announcement to discontinue support for Webextension Experiment add-on the monthly Thunderbird release channel starting at version 153 caused a small sh*t storm. This would affect these popular add-ons:
- ImportExportTools NG, 280k average daily users
- Provider for Google Calendar, 153k users
- LookOut (fix version), 146k users
- Send Later, 116k users
- Remove Duplicate Messages, 95k users
- Quicktext, 85k users
- Grammar and Spell Checker — LanguageTool, 73k users
- Mail Merge, 72k users
- CardBook, 62k users
Betterbird and Thunderbird ESR are not affected.
One add-on developer submitted this picture:
