I recently fixed a Firefox bug to allow easier tab management in FF extensions.
My hope is that extensions like Tree Style Tab or Sidebery benefit from my improvements. I love them!
Title: Updated openerTabId is not notified via tabs.onUpdated if it is changed by tabs.update()
Title: Updated openerTabId is not notified via tabs.onUpdated if it is changed by tabs.update()
https://bugzilla.mozilla.org/show_bug.cgi?id=1409262
https://phabricator.services.mozilla.com/D164982#7511767