Erasing search history completely
I've tried all the ways mentioned to delete my search history, other than deleting each entry individually. Three particular websites just won't go. Is there some umbrella action that will delete all these references?
Wšykne wótegrona (2)
Click History and select Clear Recent History… from the History menu. In the dialog box that opens, choose Everything from the Time range to clear: drop-down menu. Make sure that Form & Search History has a check mark next to it and remove check marks for any items you don't want to clear.
Regards, Jimmy
You can remove all data stored in Firefox for a specific domain via "Forget About This Site" in the right-click context menu of an history entry ("History -> Show All History" or "View -> Sidebar -> History").
Using "Forget About This Site" will remove all data stored in Firefox for this domain like history and cookies and passwords and exceptions and cache, so be cautious. If you have a password or other data for that domain that you do not want to lose, make sure to backup this data or make a note.
You can't recover from this 'forget' unless you have a backup of involved files.
If you revisit a 'forgotten' website, data for that website will be saved once again.