How to: Stop google highjacking in address bar on FireFox?
Recently noticed was the appearance of <google.com/> following an entry in address bar search line. [this appears automatically when a letter is typed] Also <https://(mysearch)google.com> in the search engine choice directly under the top address bar. At, open menu/options/search, the default search engine is set DuckDuckGo. In One-Click Search Engines, google is listed but unchecked. At help/troubleshooting information/ refresh was performed; yet, after completion there is no change of this unwanted google interjection/intervention/high jacking non-sense.
Opaite Mbohovái (1)
First, look in your Extensions for anything "Google" related. Disable or remove it/them and restart Firefox.
If nothing helps there: Troubleshoot Firefox issues caused by malware https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware?cache=no#firefox:win10:fx74