Useful Firefox Keyboard Shortcuts

Press CTRL + L to directly go to the address bar.
To copy URL of websites from address bar Simply single click on the URL, this will select the whole address, then use CTRL + C for copying and CTRL + V for pasting.
Press Spacebar to scroll down the page.
Press Shift + Spacebar for quickly scrolling up.
Use CTRL + T to open a New Tab
Use CTRL + W to close the Tab
If you use certain website more frequently bookmark that site by simply pressing CTRL + D for easily accessing later.
To find certain word or phrase in web page press CTRL + F and use ALT + N for finding Next.