Type about:preferences#privacy in the address bar. The button next to History, select Use Custom Settings. At the bottom of the page, turn on Clear History When Firefox Closes. At the far right, press the Settings button. Turn on ONLY Cache and Form And Search History leaving the others off. I cannot clear my history in any of the following ways: restarting Firefox (I have the "Clear history when Firefox closes" box checked in the Privacy section of the Preferences screen), using "Clear Recent History" in the menu bar; using "Clear recent history" from the "history" drop down in the Library menu; or using the "Forget" add-on from Click the menu button to open the menu panel. Click Bookmarks and then click the Manage bookmarks bar at the bottom. In the left pane, click on the folder you want to view. Its contents will appear in the right pane. In the right pane, click to select the item you want to delete. Hold down the CTRL key to select more than one item. Vay Nhanh Fast Money.

firefox can t delete history