Add-ons

Startpage HTTPS Privacy Search Engine by StartPage

Add Startpage - The World's Most Private Search Engine - to your search box. Startpage does not record your IP address. Search the Web in the best possible privacy!

Collector's Note Excellent

Saved Password Editor by Daniel Dawson

Adds the ability to create and edit entries in the password manager.

Collector's Note Good

User Agent Switcher by chrispederick

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Collector's Note Good, but might break some sites

DuckDuckGo (HTTPS / SSL) by DuckDuckGo

DuckDuckGo is the search engine that doesn't track you. We also have smarter answers and less clutter. This extension adds DuckDuckGo (HTTPS / SSL version) to the search bar. For more features, see the DuckDuckGo Plus add-on. Enjoy!

Collector's Note Excellent, must have

QuickNote by Leszek Życzkowski, Jed Brown, others

A simple note-taking extension.

Collector's Note Very good

Speed Dial by Josep del Rio

Direct access to your most visited websites

Collector's Note Superb, must have, this dial can replace your favorites/bookmarks. This is the best dial for Firefox (I have 518 dials in 15 groups), fully customizable and full of excellent features (Create groups, colorize you group tabs, different background for each group, and lots more) but the thing that makes it the best is not all these features only. It's the ONLY dial that allows you to import/export your settings and dials, so you can export your dials and settings to USB flash, install speed dial on any computer, do an import of your settings and dials from your USB flash and you are good to go, FURTHER MORE, it does interval backups of settings & dials on it's own, nothing beats that dial for me.

ReminderFox by Tom Mutdosch, Daniel Lee, others

ReminderFox displays and manages lists of reminders and tasks. ReminderFox uses easy-to-use lists with warnings/alarms to remind you of all your important appointments.
Synchronize ReminderFox with other calendars as well.

Collector's Note Excellent

Bluhell Firewall by Diego Casorran

Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.

Thumbnail Zoom Plus by David Adler

Shows full image when you hover over a thumbnail. Works with Amazon, Baidu Images, Bing Images, Facebook, Flickr, Google+, Google Images, IMDb, LinkedIn, Netflix, Pinterest, Reddit, Twitter, Yandex, YouTube, Wikipedia, Yahoo Images, & many more.

Collector's Note Excellent, must have

RequestPolicy by Justin Samuel

Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.

Collector's Note Superb, must have

Arabic spell-checking dictionary by Dan Kenigsberg

Arabic spell-checking dictionary for Firefox 3 and Thunderbird 3 from Ayaspell.

Collector's Note Excellent

United States English Spellchecker by jooliaan

This dictionary is no longer maintained. Use this dictionary instead.

Collector's Note Excellent

Private Tab by Infocatcher

Adds private tabs.

Forecastfox Weather by Ensolis

Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.

Collector's Note Good

Thesaurus - Reference.com by Jeremy Morton

Thesaurus suggestions at your fingertips.

Collector's Note Didn't install or test