Development Plugins for Microsoft Edge Browser

I would like to develop 4 simple Plugins / Extension that will add a site icon to the side of the search bar in the browser, the extension should change the start page (the browser home page) and clicking on the icon will open the predefined site, x4. Chrome extension example - [login to view URL]%D7%A7%D7%99%D7%A9%D7%95%D7%A8-%D7%9E%D7%94%D7%99%D7%A8-%D7%9C%D7%90%D7%AA%D7%A8-%D7%A1%D7%98%D7%90%D7%A8%D7%98/ljhnddenoiocdcniafffibddooiagefc?hl=iw