Middle Click To Go Back

Download extension

Go back with your middle mouse button.Default actions stay as usual.
You can still "open the link in new tab" or "close tab" with middle-click.
(and in linux, you can still paste with middle-click.)

But now:
* Click middle mouse button on an empty space on a web page to go back.
* Middle-click closes the current tab if no page to go back. (Optional)

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Tested on WINDOWS and LINUX.

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For Firefox: https://addons.mozilla.org/en-US/firefox/addon/5938

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RELEASE NOTES
1.8
Works on "tabless windows", too.
1.7
Optional "middle-click closes the current tab if no page to go back" behavior looks like working :)
1.6.3.3
bugfix
1.6.3
onclick change to mouseup to overcome http://www.crbug.com/56124
1.6.2
Optional "Middle-click closes the current tab if no page to go back" feature does not close the browser anymore.
1.6.1
Options added to enable/disable "Middle-click closes the current tab if no page to go back."
1.6
Middle-click closes the current tab if no page to go back.
1.5
Works on Windows, too.
1.4
more responsive
more stable
1.3.1
added: "all_frames": true, to manifest
added: icons