Q:

How do you lock the backspace key?

A:

Quick Answer

The backspace key can be disabled by modifying a browser's default configuration settings. Major browsers, such as Firefox, have a built-in functionality that automatically sets the backspace key as the browser's back button when keyboard focus is not on a text field.

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Full Answer

Mozilla provides the following steps to lock the backspace key.

  1. Type "about:config" into Firefox
  2. Ensure that there are no leading words to "about:config" in the address bar, such as "http://" or "www." Press the enter key after typing the command.

  3. Read Mozilla's warning message
  4. Select or deselect the checkbox that comes with the warning message. Click on "I'll be careful. I promise!" to proceed.

  5. Set the integer preference to 2
  6. Locate "browser.backspace_action" from a list of options. Double-click on it to open a pop-up dialogue box. Input "2" in the textbox. Click "OK" to disable the backspace key from its default browser action.

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