Definition of «open tabs»

"Open tabs" refers to the different web pages or websites that you have opened and are currently visible in your web browser.

You could also open a tab in Chrome browser, then right click on the webpage, and click Cast. (pocket-lint.com)
This can make keeping track of open tabs tricky — especially if you have lots of open apps. (techradar.com)
This allows you to access information like your bookmarks and open tabs on other devices you own. (howtogeek.com)
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