1797949 - [MV3] Only the first action.onClicked event is executed, if background page was terminated and had to be restarted

Status: RESOLVED DUPLICATE of bug 1795801

(WebExtensions :: General, defect)

Description

[John Bieling (:TbSync)]

Consider a simple background page in an MV3 extension (manifest does not declare a popup of course):

browser.action.onClicked.addListener(() => {
  console.log("I am #1")
})

browser.action.onClicked.addListener(() => {
  console.log("I am #2")
})

Both console logs are printed when the action button is clicked after install. However, when the background page is terminated and the button is clicked, only the first one is printed on the first click on the action button (which restarts the background). On the second click, both are printed again.

Expected behaviour:

All listeners are executed.