Beta This category is used to describe and discuss Thunderbird Beta releases. Please only use this category to discuss Beta releases, if it does not deal with Beta releases - don’t use this category!
Add-ons This category is for discussing Thunderbird add-ons/extensions. This is a good place to discuss add-on development, ask questions about creating add-ons, and help others create new extensions.
How to access elements inside a browser element (for example the abContactsPanel sidebar) [Add-ons] (2)