Some information:

• Hold Ctrl (Mac: Command) and left-click or middle-click the Reload button on the location/address bar to open the current page in a new tab.
• Hold Ctrl (Mac: Command) and left-click or middle-click items in the tab history of the Back and Forward buttons to open a page from that list in a new tab
  You can hold down the left mouse button on the Back or Forward button to open the tab history.
• Duplicate a tab with its history by holding down the Ctrl key (Mac: Option key) and dragging the tab to a new position on the tab bar.
• Dragging a tab in the browser window will detach the tab and move it to a new window, this is called tab tearing.
• Drag a tab back to the tab bar in the original or anther window to undo a detach or move a tab to a specific window (an empty window is closed automatically)

This method gives you the most exact copy:

cor-el said

• Duplicate a tab with its history by holding down the Ctrl key (Mac: Option key) and dragging the tab to a new position on the tab bar.

For example, it carries over information you have started typing into a form (like the one I'm typing in now).

If you prefer a keyboard method, you can do it this way:

(1) Move the focus to the address bar using either:

• Alt+D
• Ctrl+L
• F6

(2) Hold down the Alt key and press Enter -- this gives you a clean load of the page without any form contents or back button history

(note that this user hasn't activated yet, so I'm not sure about emails being send)

Note that if you try to open the same URL in more than one tab then you may have the "Switch to tab" feature preventing that. You can remove the checkmark on "Open Tabs" in the location bar settings to disable "Switch to tab.

• Tools > Options > Privacy > Location Bar: When using the location bar, suggest: [] Open tabs

Hold down the Alt or Shift key while an entry in the drop down list is highlighted to disable "Switch to tab" and see the URL of all entries instead.

Again the question is: Why all the other serious browsers can do that and Firefox cannot?? What is so difficult to add a line in the context menu??

Hi sorin86, support volunteers do not always know the answers to "why" questions.

You can request new features on the following page:

https://input.mozilla.org/feedback/firefox

@jscher2000 - Very likely. But wouldn't it be really stupid if the developers didn't read this forum very carefully? ;)

Hi sorin86, Mozilla user advocates review the forum and escalate issues that need attention. Matching competitors is one basis for prioritizing a feature, so feel free to mention that in your feedback.