This is a collection of add-ons that I REALLY DO USE Every Single DAY!
Blocks annoying video ads on YouTube, Facebook ads, banners and much more.
Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...
Personas are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to new, popular, and your own favorite Personas.
It blocks ads on the web pages you visit including Youtube, Hulu, TwitchTV/JustinTV, most Major News Sites(cnn/fox/nbc/msnbc) and many more. Ads from services like Google AdSense Yahoo DoubleClick It also blocks the GoogleAnalytics tracking script.
Checks the (whole) web page (and not the text inside edit box) for spelling mistakes and highlights it.
Get a faster browsing experience with SpeedFox. Customized new tab and shortcuts to your favorite websites. Open the SpeedFox Overlay on any website with CTRL+Q. No more misspellings in your URLs with the automatic URL fixer.
Personas Rotator is a new companion for Personas Firefox add-on to change over 65000+ skins periodically on Firefox. What Will Your Browser Wear Now?
Help us make Firefox better by joining our structured user studies! No need to download this add-on if you are running Firefox 4 beta, - you are already a part of the team!
an easy way to user big emoticons on facebook chat. this plugin will create a small panel beside your chat panel with list of all big emoticons. you can easily copy and paste the code on you chat box.
Remove results from Bing's search pages by domains. Note: the styling you see is from a userStyle, currently not part of the addon.