Click middle mouse button on an empty space on the page to go back.
And optionally, you can set middle-click to close the tab if no page to go back.

While keeping the old behaviors:
Click middle mouse button on a link to open it on a new tab.
Click middle mouse button on a specific tab to close that tab.
In Linux, click middle mouse button on a text input to paste selected text.

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For Google Chrome: http://goo.gl/cnR67

Install

• License: Mozilla Public License 1.1
• Weekly downloads: 3
• Average daily users: 158
• Rating: 4.2857/5 of 7 ratings
• Created: 2007-10-30 02:27:02
• Last updated: 2017-10-03 20:50:29
• Homepage:
• Support site and email
• Orig: https://addons.mozilla.org/en-US/firefox/addon/middle-click-to-go-back/
• API: MiddleClickToGoBack@lembas