BlockTracker is a free Chrome extension developed by blocktracker.org that aims to enhance your Twitter-NFT experience by providing information about each individual user in a simpler and more intuitive way. With this extension, you can quickly access one's holding history and stay updated on their activities.

The extension offers several features to enhance your Twitter-NFT experience. Firstly, it provides pop-up notices and a timeline view of significant activities through its Alerts feature. This allows you to stay informed about important updates and events.

Additionally, BlockTracker offers Profile Expansion, which extends the pop-up card and personal page of a user and provides useful information when you hover your mouse over their avatar. This feature intuitively displays the user's recent actions, allowing you to easily track their activities.

Furthermore, the extension includes an Active Users Recommendation feature, which helps you explore and discover better community users by showing their holdings. This can be useful for finding and connecting with like-minded individuals in the NFT community.

Lastly, BlockTracker allows you to create giveaways and carry out promotional activities through tasks. This feature enables you to engage with your followers and incentivize participation.

To start using BlockTracker, simply click the "Add to Chrome" button at the top right of the current page and install the extension. Once installed, open or refresh twitter.com to begin enjoying its enhanced features.