Google is the only search engine I've selected for my Firefox Android browser. Often in the last month or so – after I type a search term into the omnibox at the top of my Firefox browser page – a "bing.com" results page opens. In fact, after I tried the words 'bing hijack' in this Mozilla Help page's own dedicated search box (NOT the browser's omnibox) another 'bing.com' page opened with search results This has happened in two different mobile devices that are synced to the same Firefox account. I do use the uBlock extension so I added the bing URL to the "My Filters" list, and my browser is always set for 'Strict' tracking protection. Is there any way to defeat this nonsense?