Refresh all tabs at once in Chrome

To refresh all the tabs in chrome browser is pretty easier with an Extension.

“Reload All Tabs”

https://chrome.google.com/webstore/detail/midkcinmplflbiflboepnahkboeonkam

Reload all tabs using keyboard shortcut(ctrl + shift + r), context menu, or browser action button.

If you want to remove the browser action button (top right), just right click and choose "Hide button".