Build a browser on chromium with built in extensions

Need someone to build a browser on chromium with built in extensions (main and home page, own search, visual bookmarks). Theese extensions can not be swicthed off and nobody (and other extensions too) can not change our search and pages. Please contact me only if you can do the above job. The browser will also need to look nice and be represented by our logo. Browser should have an autoupdate for our new versions.