How do you disable the feature entirely? I got a popup today for this today in Firefox, and I don't want any popups.
I do not think you are browsing like 10 languages that you do not want translated so you do not need any "disable completely" option. But I guess there is, maybe in about:config if not in the settings.
Ten probably not, but with 4 it's already annoying… Also the translation is bad enough that you may want to disable it entirely to use other services instead (at least that was my experience so far)
They have a lot of different users with varying skill levels. One time popups demonstrating new features is a net win for them.
I guess you could build a toggle for "disable tutorials" for the 2% that need it.
It's not just a one time popup though.
It's a "net win" for whatever manager and/or engineer is trying to get an internal promotion by externally promote their new feature. Every company seems to want to add popups everywhere in order to promote their new features.
(The worst is GitHub, who are constantly promoting new features that I don't care about.)