Tab Slot is a browser extension designed to manage the way launcher shortcuts, bookmarks, and automation tools open web pages. The extension addresses the common problem of browser clutter caused by repeatedly opening the same URL, such as search engines, documentation sites, or dashboards, which can result in multiple duplicate tabs. Instead of creating a new tab every time a marked URL is launched, Tab Slot ensures that subsequent launches return to the original tab associated with that URL, preventing duplication and maintaining a cleaner browsing environment. The extension works by allowing users to mark URLs with a slot name. When a marked URL is opened, Tab Slot removes the marker and opens the clean URL in a browser tab. It then stores the slot name, the browser tab's ID, and the initial URL in the browser's local storage. If the user launches the same slot again, Tab Slot checks if the tab still exists and, if so, brings the user back to that tab. If the tab has been closed, the extension opens the URL again and rebinds the slot to the new tab. This mechanism is particularly useful for users who rely on shortcuts or automation to access the same web resources multiple times throughout the day and want to avoid losing their place or duplicating tabs. Tab Slot is available through the Chrome Web Store and is compatible with Chrome and other Chromium-based browsers that support Chrome Web Store extensions. The evidence does not specify pricing or licensing details. The tool is intended for users who utilize browser-based launchers, shortcuts, bookmarks, or automation tools and wish to streamline their workflow by reducing tab clutter and enhancing tab reusability.
In the Productivity & Work space, Tab Slot takes a focused approach. It focuses on preventing browser tab clutter by ensuring shortcuts and bookmarks reuse existing tabs instead of opening duplicates. Tab Slot is a consumer product aimed at browser power users. Tab Slot costs nothing to use. Tab Slot is available on the web and embeddable surfaces.
It is developed by SpaceLauncher, and the product first shipped in 2026. Among its 5 catalogued features are tab management, launcher shortcuts, and bookmark integration.
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