Enhanced Steam - A Chrome and Firefox browser extension that enhances the Steam storefront with all kinds of extra...
Steam Tools Hub - A set of Steam related WebApps built around trading cards, emoticons and backgrounds.
Steam Inventory Helper - Steam Inventory Helper is a free browser extension for Google Chrome that adds a big amount of new features into the Steam trade-offer system & Steam store functionality.
Augmented Steam - Enhanced Steam fork by IsThereAnyDeal.
SteamWizard - SteamWizard is a browser extension that helps in providing additional information for CS: GO items on the Steam community market.
Steam Market History Plus - Steam Market History Plus is a browser extension that comparatively provides more valuable Steam market history.