That could be the form filler built into Firefox. Click in the field, enter a character or two and STOP ! Using the arrow keys, highlight an unwanted entry. Then press Shift > Delete Repeat as needed.

Do any of these links help you? https://support.mozilla.org/en-US/kb/control-whether-firefox-automatically-fills-forms

https://support.mozilla.org/en-US/search?w=1&q=autofill

As I type letter d in my seach bar this random url is suggested { https://dolohen.com/ } . I refreshed firefox still not gone. and its not even in bookmarks and I cleared by histroy and cookies completely no luck. Help

sorry my fault it was in bookmark names starting with redirect thanks for answering. Again Sorry