We all know that Mozilla Firefox is very popular among all the browsers. The shortcuts available in Mozilla Firefox are
Click one end, hold Shift & click another Create a selection from the two points
F6 Move focus to address bar.
F11 Toggle on/off full-screen mode
Alt + (Left Arrow) Go back on history.
Alt +(Right Arrow) Go Forward on History
Ctrl + A Select All Ctrl + B Favorites.
Ctrl + C Copy Selected.
Ctrl + D Add the current page to favrite
Ctrl + E Search panel.
Ctrl + F Find (on page).
Ctrl + H Toggle History panel.
Ctrl + I Toggle Favorites panel.
Ctrl + J Download.
Ctrl + N Open New browser window.
Ctrl + P Print current page / frame.
Ctrl + R Refresh. Same as F5
Ctrl + T New Tab
Esc Stop (while page is loading).
Ctrl + Enter Auto complete a url address (For example, Type in your address bar as facebook and press CTRL + ENTER to get http://www.facebook.com)
Shift + Enter Complete a .net instead of .com
Ctrl + Shift + Enter Complete a .org address.
Ctrl + Tab Cycle through Open Tabs
Triple Click Select entire line.
Wheel click Activate the Smooth scrolling.
Hold Ctrl + Scroll Wheel forward Increase font size
Hold Ctrl + Scroll Wheel backward Decrease font size