How to easily turn my web app into a chrome extension?

I would like users to be able to have my web app Kleermind visible everytime they open a new tab. It seems the only option is to create a Chrome extension so I was wondering if there is an easy way to do so.

VP @Iconosquare. Currently building Kleermind a productivity app to help you stay focus.
I make

I have build a chrome/firefox extension for a company once, The API is pretty straight forward and making your page work in a new tab (assuming you don't do interactions with other web pages) it's pretty easy!โ€ฆ

The google docs are pretty straight forward

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