The sidebar opens in the left side of the screen by default. Is it possible to change this default the right side?
(https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/sidebar_action)
This is determined by the value of the preference sidebar.position_start (true is left and false is right). I don’t know if there is a way to switch that position from an extension, or whether it would be appreciated by the user.