executeScript() for thunderbird/lightning/tasks?


I’m trying to write an add-on to thunderbird/lightning/tasks to delete a
UI element that gets in my way:


but I can’t get executeScript() to be injected in the tab. I can find
the “Tasks” tab, but it has no URL, unlike other tabs. Is it forbidden
to inject a script into that tab?

Hey @n952162, this section of the Mozilla Discourse server is primarily focused on Firefox Add-ons. You might have better luck posting in the Thunderbird/Add-ons section.

1 Like

Thank you. Thank you.