Slack Tab (Webpage) Closer is a free Chrome extension developed by oasis. It falls under the category of Browsers and is specifically listed under Add-ons & Tools. This handy extension automatically closes the tab or webpage opened by Slack when opening a link to a channel, a message, or a thread.

With Slack Tab (Webpage) Closer, there is no need to manually close the tab or webpage. As soon as the tab is opened by Slack, a 10-second countdown timer begins. Once the timer reaches 0, the tab is automatically closed. The simplicity of this extension makes it easy to use and saves users the hassle of closing tabs manually.

One of the great features of this extension is the ability to customize the countdown starting value in the settings. Users can adjust the timer to their preference, allowing for a more personalized experience.

In terms of privacy, Slack Tab (Webpage) Closer is privacy-focused. It does not have any analytics or tracking features, nor does it have any external dependencies. This ensures that users can utilize the extension without any concerns about their privacy being compromised.

It's important to note that Slack Tab (Webpage) Closer is not endorsed by or affiliated with Slack. However, the extension's icon was created and designed by Danial, adding a personal touch to the overall experience.

Overall, Slack Tab (Webpage) Closer is a useful Chrome extension for Slack users who want to streamline their workflow by automatically closing tabs or webpages opened by Slack.