Adding a counter to Add-on icon

Add-ons Development
1

I am trying to implement a counter that shows up next to my Add-ons icon.
Honey and Addblocker are using it for example, but I just can’t find anything
on how to implement it in the documentation…
An example is given below:
addon2
addoon1

Does anyone have an idea who to do this?

Thank you in advance!:slight_smile:

2

What you want is https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/browserAction/setBadgeText

4

Thank you a lot!!
Thats exactly what I was looking for!