Keyboad Shortcut Keys For Mozilla Firefox

I want to share some shortcuts of Mozilla Firefox, which I use in my daily task and save my time. Many of techies might be aware of these shortcuts. I thought of sharing these shortcuts with beginners, so that they can also save their time.

Mozilla Firefox shortcut keys:

Shift + Spacebar: This is used to moves up a page at a time.
Shift + Enter: This is used to complete a .net instead of a .com address.
Ctrl + (- or +): This is used to increase or decrease the font size.
Ctrl + 0 (Zero): This is used to get back to original font size.
Ctrl +Shift + Enter: This is used to complete an .org address.
Ctrl + Tab: This is used to navigate through each of the open tabs.
Ctrl + T: This is used to open new tab.
Ctrl + P: This is used to print current page/frame.
Ctrl + D: This is used to bookmark the currently opened page.
Ctrl + J: This is used to display the download window.
Ctrl + I: This is used to display available bookmarks.
Ctrl + N: This is used to open new browser window.
Ctrl + K: This is used to go directly to the search button at the upper right.
Ctrl + W or Ctrl + F4: This is used to close currently selected tab.
Spacebar: This is used to move down a page at a time.