Chrome Extension is Required

1)- I have a speech recognition script (via google chrome) which is implemented on a web page. When that page is opened, it recognizes speech and send email alert on specific words. 2)- There is other script for audio recording which records audio and upload on the server 3)- There is a script which continuously update database when a web page is opened to keep 'Online' status of the user. >> I want to make a Chrome extension which will have 'Same Scripts' as discussed above. >> This Chrome extension will keep running when Chrome is closed (when 'keep running apps in the background is enabled in chrome'). >> Make web pages mandatory to have 'Chrome Extension' installed otherwise they will return error.