I am quite happy that many addons of firefox now are available for the android version.

You probably already know famous ones, such adblock, etc. I just found this "quick gesture", which allow gestures to control many important functions.

Firefox's gesture addon-2013-02-28_05-25-18.png

you can enter the option of set up the gestures as you wish, be sure to use all capital letters when define a gesture.

Firefox's gesture addon-2013-02-28_05-26-22.png

due to obvious reasons, you will have to chose a gesture that is composed of continuous swipes of two more more directions.

No, its not as extensive as dolphin, but does make accomplishing most common tasks quicker, such as quit, scroll to top/bottom, new tab, close tab, etc.