1. Tap the three bars in upper right (on iPad) or lower right (iPhone) 2. Tap Settings 3. Tap Search 4. Tap Add Search Engine at bottom 5. Follow the Prompts 6. Go back to Search page and c hange default search engine at top of page

When I get to step 5, I always get the same message: "Please fill all fields correctly". I have typed "Qwant" for title and all variations of "https://www.qwant.com/?q=qwant&client=ext-firefox-sb" under URL. Thank you

I assume you're using the wrong address. Perhaps it's just www.qwant.com? Not sure.

Got it! The solution is: Https://www.qwant.com/search?q=%s

Glad you figured it out, anapissarro.