Enable/Disable Backspace as 'Go Back' Shortcut in Firefox
In Firefox on Windows operating system, if you press the `backspace` key, it will take you one page back from current web page, an action that similar to when the both Firefox and IE browser's "Back" button, while `Shift+Backspace` will go forward. The backspace key is mapped to "Back" function in Firefox for Windows is for consistency with Internet Explorer.
On the other hand, Firefox in Linux by default does not map the backspace key to "Go Back" function to improve consistency with other applications running on Linux. Instead, the page will scroll up or down (when pressing Shift+Backspace key together).
The backspace as Back button feature can be easily turned on or off depending on user preference. Thus, Firefox for Windows users can disable the back function mapping to backspace key, and Firefox for Linux can enable the backspace to map to Back function easily, by using the following Firefox preference.
Step 1 :
Type about:config and then press Enter key in Firefox Location Box..
And then confirm the warning message.
Step 2 :
Then type "backspace" in search bar and locate the following preference name: browser.backspace_action
Right click on it ,select "Modify" option
and change the browser.backspace_action value to one of the following values (as per your need):
Set value as 0: If you want to set backspace key as 'Go Back' short cut. (Default in Windows)
Set value as 2: If you want disable Backspace as shortcut for 'Go Back' . (Default in Linux)