No Dupe Tabs Chrome 插件, crx 扩展下载

扩展ID: fajkhkmabkgflclnlmfdafpikejjncca

Swap to preexisting tab if url is already opened.If you open a URL that already exists in one of your tabs, this simple extension will close the tab and switch to the preexisting tab! If you rarely reuse tabs, use this extension to avoid a list of duplicate tabs! 

Add website to whitelist if you want to allow duplicates for those websites. To access whitelist, press the extension icon at top right of your browser. 

Update-
V2.1 - Added whitelist
V2.2 - Fixed pop-up style on Windows
V2.3 - Fixed empty whitelist bug