Drag Button is a Firefox extension, adds a resizer and inserts several control buttons into the customize toolbar palette. It inserts a few window management utilities that will ease your work.
For those hiding toolbars can insert these icons into the tab strip to have access for window dragging and restoring. Also inserts a resizer in bottom right corner of browser.

Requirements:
* Firefox
* Thunderbird

The license of this software is Free Trial Software, you can free download and get a free trial.