SameTab - keep only one copy of the tab open is a developer tools chrome extension. it's a free extension , it has 8 active users since released its first version, it earns an average rating of 3.50 from 2 rated user, last update is 3000 days ago.
SameTab is a small extension for Chrome that checks if a newly opened tab is the same to one of already opened. If it finds one it will close the duplicate freeing up some memory and tab space.
You could download the latest version crx file or older version files and install it.
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100% user give 5-star rating. Read reviews of sametab - keep only one copy of the tab open
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Same functionality as others, but with lower memory usage. Excellent!