How do you set your Android smartphone not to switch to the web browser app each time you click on a link?
The tab queue is sadly gone from the new Firefox.
There is a feature request here but it's ignored:
https://github.com/mozilla-mobile/fenix/issues/470#issue-409774110
You can uninstall the new Firefox and then install the old version's apk from here:
https://www.apkmirror.com/apk/mozilla/firefox/firefox-68-11-0-release/