Ctrl+N – It use for Open New Browser Window.
Ctrl+T – It use for Open New Tab on Existing window.
Ctrl+W or Ctrl+F4 – It use for Close the current window or Tab.
Ctrl+R or F5 – For refresh The Page
Ctrl+F5 orCtrl+Shift+R – Refresh the page with override cache
Esc – Stop
Ctrl + O – It use for Open File
Alt+Home – Home
F1 – Firefox Help
F11 – Toggle Full Screen of Browser Window.
Ctrl+Tab – For Changing Tab between Existing window.
Ctrl+U – Open View Source Page of any webpage.
Ctrl+I or Ctrl+B – Open Bookmark window in left sidebar
Ctrl+P – For Print Command
Ctrl+A – Select All
Ctrl+S – Save Page As
Ctrl+D – Bookmark This Page
Ctrl+F – Find
Ctrl+G or F3 – Find Again
Ctrl+H – open History Window In left Sidebar.
Ctrl+J – Open Downloads Window
Ctrl+Z – Undo Your Process
Ctrl + Y or Ctrl + Shift + Z – Redo your Process
Ctrl+C – Copy
Ctrl+V – Paste
Ctrl + Shift + Delete – Clear your Private Data
F7 – To Open Browser in Caret mode
Backspace or Alt+Left Arrow – Back
Shift+Backspace or Alt+Right Arrow – Forward
Alt + Enter – Copy your existing window tab and Open It in New Tab
Ctrl + Tab or Ctrl + Shift + Tab — rotate forward to the next window tab
Down Arrow – Scroll down
Ctrl+ “+” or Ctrl+ Scroll up – Increase Text Size (Zoom In)
Ctrl+ “-” or Ctrl+ Scroll Down – Decrease text Size (Zoom Out)
Ctrl+ 0 (Zero) – Normal Text Size (Default Zoom Mode)
Alt+ Scroll Down – One step page go down
Alt+ Scroll Up – One step page go Up
Ctrl+Shift+I – DOM Inspector
Ctrl + L or ALT + D – Select Location Bar
Ctrl + Enter – To complete URL with .com
Ctrl + Shift + Enter – To complete URL with .org
Shift + Enter – To complete URL with .net
Ctrl + Up Arrow – Choose previous Search engines to search information
Ctrl + Down Arrow – Choose Next Search engines to search information
Alt + Up Arrow or Alt + Down Arrow – Open List of available Search Engine