create chrome Black Blue Nebula

Create an extension just like Black Blue Nebula

Last updated: 14 January 2019
Price: Free
This extension is quite popular with each days reviews of 0.1250
I give you here the actual important information:
xTab is a Chrome extension that lets you limit the maximum number of tabs that can be open at one time.

You can set the tab limit to any number and choose what tab should be removed when you hit that limit:

– Least recently used (default)
– Least accessed
– Oldest

You can alternatively block new tabs from opening completely once the limit has been reached.

Pinned tabs, tabs playing audio, and tabs that you have never visited (opened in the background) will not be closed.

If you are looking to install in an enterprise environment and customize settings using a group policy please contact us here:

Note that after the extension is installed, if you do not change the default settings, it will close any tabs you have open beyond a 20 tab limit. For example, if you have 50 tabs open when the extension is installed, the next tab you open will remove 30 tabs. You can avoid this behavior by changing the default settings as soon as it is installed.


– Rearchitected to support additional functionality and custom builds.
– Updated the pop up UI to make it simpler to understand what the different options do
– Added an option to prevent tabs that are playing audio from being closed by the extension (enabled by default)
– Added an option to recycle existing tabs. This means that instead of closing an old tab it will reuse the old tab and move it into the new position. This allows you to use the back button to get back to a tab that has been closed (disabled by default)
– Added a page that shows up in place of a new tab if you have the extension set to block new tabs from opening (enabled by default)
– Added an option to block tabs from opening without showing a page (disabled by default)
– Added new xTab logo to popup menu
– Updated extension icon
– Updated extension logo
– Improved handling of tabs you have never been to
– Decreased amount of time until a tab is considered active to prevent cases where sometimes a tab doesn’t get closed even though you have been to it
– Reduced number of options in tab limit dropdown

– Updated copy in popup to be more clear

– Added option to block new tabs from opening instead of auto closing an older tab
– Handled cases where the tab id could change for an existing tab
– Improved handling of tabs you have never been to so they are less likely to be closed in different modes

– Fixed issue that would cause this extension to sometimes not work if a configuration value was mi

You can find more information about this chrome extension using

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This chrome extension has around 4000 users and 128 reviews.

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