I use "Backspace" to go previous page very frequently and I wish Google developers return from that decision.

Please implement this option natively in settings, not with an extension. 

It is unbelievable that such a well-established keyboard convention could be abandoned like this.

Navigating 'back' is such a fundamental part of the browsing experience. To replace the fastest shortcut of such a crucial feature with the suggested subsitutions is a disservice to this browser. 

Using two hands to press "Alt-Left" or using "Right-Click->Back" feels so clumsy and slow when you are performing this action hundreds of times a day.

This is not the place to be debating the decision to remove backspace to go back.

The "Go Back With Backspace" extension is now available as https://goo.gl/L30YZ7