I can't get Startpage added as a search engine in Firefox on my Samsung A21s Andeoid mobile phone.
The solution given for setting Startpage as the default search engine on Firefox does not work on my newly purchased Samsung A21s mobile phone. I get a message telling me to "Replace query with "%s" and then gives a Google example... Also provides a More option which gives a string to use for Startpage: "https://startpage.com/sp/search?q=%s" but that also doesn't work, it just gives the same message "Replace query with "%s". My phone is using Android V11 and is model no SM-A217F. Any other suggestions to try?