Here are the most essential Mozilla Firefox extensions I've come across thus-far:

AdBlock Plus (*NOTE* I highly recommend that you install the EasyPrivacy filter subscription for this.)

AdBlock Plus: Element Hiding Helper (*NOTE* I don't understand why this feature does not come with AdBlock Plus by default - it is nearly as good as AdBlock Plus, and is developed by the same developer.)

Clippings

Greasemonkey

Hide Menubar (*NOTE* This extension will soon be obsolete since the current beta version of Mozilla Firefox has native support for hiding the menubar.)

Image Zoom

Inline Google Definitions

Is.GD Creator (*NOTE* I just recently discovered this; highly recommended.)

Nightly Tester Tools (*NOTE* Nightly tester tools is only recommended if you enjoy using nightly/beta builds of Firefox.)

NoScript (*NOTE* This extension is overkill for some users, but for many, it is considered as being an essential add-on.)

Rotate Image

Screengrab

Site Launcher


There you go. That is my list of the most essential Mozilla Firefox extensions I've come across thus-far.

Each of the add-ons I listed are hot-linked to their respective download page at addons.mozilla.org. Simply click on the add-on name to read the full description and reviews; this will ultimately help you decide whether you want to install a particular extension or not.

Filed under: Nightly