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Focus Mode is a new experimental feature of Google's Chrome web browser. Google added a Focus Mode flag to Chrome Canary in February 2019 but enabling it at that time did not do anything as the underlying functionality was not fully implemented back then.

The description did not reveal much, as it simply stated that enabling the flag would allow users to switch to Focus Mode.

Recent versions of Google Chrome Canary, the cutting edge development version of Google Chrome, support Focus Mode functionality. It is unclear whether the feature is fully implemented already or if it is only partially available.

Focus Mode in Chrome

It is still necessary at this point to enable Focus Mode in Chrome before the feature becomes available. Note that you do need to run Chrome Canary at this point to test it.

1. Make sure you run Google Chrome Canary and that the browser is up to date.
2. Load chrome://flags/#focus-mode.
3. Set the flag to Enabled.
4. Restart Google Chrome.

A right-click on a tab displays the new "Focus this tab" option after the restart. What it does? It loads the web page in a new browser window that lacks most interface elements.