Error: Promised response from onMessage listener went out of scope

[Dimas-sc]

With Firefox Relay 2.8.1 and Firefox 144 (143 affected too), I see this message many times in the console:

Error: Promised response from onMessage listener went out of scope
background.js:505:27

[joeherm]

Thank you for reporting this @Dimas-sc. We've filed a ticket on the team's end to take a look.