Issue: Linux Mint locks down the Firefox browser with a few sponsored search engines. My favorite Google is not even available. See below.
As a Linux Mint user, it is frustrating to use the supplied Firefox search engines of DuckDuckGo,, LinuxMint, Startpage, Twitter, and Wikipedia. There is a work around available right from the Linux Mint website. Select the Google Icon. The link is below. After applying the fix, select Google as your default search engine.
https://www.linuxmint.com/searchengines/anse.php?sen=Google&c=y
And after applying the update, you can select Google.