The Tweet Cards plugin add support for Twitter Cards to your Joomla articles when you share them on Twitter. Tweet Cards is listed as the only Joomla plugin in the Twitter Developer site: https://dev.twitter.com/cards/cms-integration#joomla
When you share your article's link on Twitter, the article's image and description would be visible to your followers.
This helps to drive more traffic to your website due the image and description would redirect your followers to your Joomla site when they click on them.
Install the plugin in two steps and type your Twitter username to be ready to share articles with a better looking.
Tweet Cards has been tested and works in all major browsers.