These are a ready make selection of some of the most popular buttons from the Custom Toolbar Button Maker
Install
Installing Extensions and particularly themes that you have downloaded can be quite a trick. This button makes the process simple and hassle free.
Print Preview
Paper costs money (and trees) so it is worth checking what the page looks like before you print it. Though it has always amazed me just how much the button gets downloaded.
Add-ons
This being the most downloaded button I have made speaks for itself. The add-on's window allows the installation and management of all your extensions and themes. If you need an update, change a setting, swap themes or enable/disable an add-on the Add-ons' window is the black to go. Being able to access this quickly is a necessity for many.
Restart
There is a number of reason you may want to restart the program your using. Though having installed an extension is the most common. This button take all the hassle and work out of it.
Options
Firefox, Thunderbird and Sunbird all have a huge number of settings. Often you will find a need to change one. About to visit your banking site, so you want pop ups enabled, or what ever your current need might be. The button brings the option window to you quicker.
about:config
The real geeks way of changing settings. All Mozilla based programs have settings that can not be changed in the options window. These hidden settings are all reveled in the about:config where anything can be changed or reset.
Enlarge
Enlarge the text size on sites that makes the text so small you can.
Customize Toolbar
The customize Toolbar window is where every button from this extension and others like it get placed for you to then move to your toolbar. Creating the perfect set up is always a moving target that is never quite achieved, but this will make it a little quicker to get there.
Find
Open the find bar to find a word in the current page.
Toolbars
Toolbars use up valuable screen real estate, removing them frees this up to show more web page or email depending on what your doing.