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Step 1
Go back to a previously viewed webpage by holding down "Shift" and scrolling down with your mouse wheel. You can also go forward by holding down "Shift" and scrolling up.
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Step 2
Close an open tab by clicking on the middle of the tab with your middle mouse wheel button.
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Step 3
Increase the size of the text on the page you are viewing by holding down the control key ("Ctrl") and scrolling down with your mouse wheel. You can also decrease the size of the text on the page by holding down control and scrolling up.
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Step 4
Open a link in a new tab by clicking on the link with the middle mouse wheel button. Open a link in a new window by holding down the shift key and left clicking on the link.
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Step 5
Use the Firefox mouse shortcut to scroll line by line if you don't have a mouse with a line by line scrolling wheel. To do this, hold down the "ALT" while scrolling.









