Rated 5 out of 5 stars

per LeeBinder el mai. 3, 2018 · enllaç permanent

*Successfully enabled ⌘⇧A to open Add-ons Manager in Thunderbird macOS:*

1. find and disable existing ⌘⇧A

2. add new key:
openAddonsMgr();
⌘⇧A

thumbs up - thank you Jonathan Kamens!!