I didn't really believe my eyes when I saw it the first time, I thought it had to be some ad specific to the website.
But it appears every form accepting an email on any website I visit now gets a small duck icon next to it that pops up a big bold-print message box to "Protect your inbox " complete with a cheeky prompt to either "get email protection" or "maybe later." Refusal is not even an option. This is definitely new for me as of today.[0]
I found DuckDuckGo via Hackernews and have generally been a happy user of both the search engine and the privacy extension. Why could they possibly be doing this? It seems like a self-destructive act from a branding standpoint, I can't imagine their target customer demographic is amicable to this kind of thing.
[0]https://i.redd.it/p1tcoikka0ka1.png
Edit: It's even on Hackernews! I genuinely can't recall a browser extension acting like this since the mid-00s adware toolbar days. https://i.imgur.com/vYjZAUK.png
Edit again: This post originally just said "injecting ads into web forms," I edited the title to clarify - apologies if that was misleading.
This is part of the onboarding for our optional DuckDuckGo Email Protection feature that comes with the extension. (Note if you just use our private search engine, you do not need our extension at all.) The feature generates email aliases for you on sign up forms (so you don't give out your real email address), which then forwards to your regular inbox with email trackers removed in the process: https://spreadprivacy.com/protect-your-inbox-with-duckduckgo.... It is mentioned in the add-on description as one of the extension's primary features, e.g., at https://addons.mozilla.org/en-US/firefox/addon/duckduckgo-fo....
(x-posting part of another comment here for context on this feature: Popping up a level, the goal of our product is to be the "easy button" for privacy, and email protection is a big part of it, since as we (and others) have gotten much better at web tracking protection (e.g., see https://help.duckduckgo.com/duckduckgo-help-pages/privacy/we...), unscrupulous actors have done more and more email tracking, using your email address as a unique identifier to track you across sites and putting email trackers within emails to do similar.)
Update: I am listening to the feedback presented here, though please know there is a whole team of people working on this feature, trying to bring needed email protection to our mainstream user base. Email protection as a concept is hard for people to understand and the team felt that this in-context onboarding was the best way to explain it. However, we will now revisit this given the feedback.