It'd be helpful to have a new tab button next to the address bar on mobile for easy access.
Currently, opening a new tab requires two clicks - one to open the tab window, and another on the "+" button to open the new tab. This also requires interaction with two different parts of the screen that are far apart from each other (top right vs bottom right), which is hard to do one-handed or in a hurry, especially on larger phones.
I'm a heavy tab user, and the option to have a "+" button directly next to the address bar would make it easier to open a new tab quickly.