10 Must Have Chrome Chromium Extensions Google Chrome is already a popular browser, as is its open source variant Chromium. It is already rich enough when it comes to Extensions (Add-ons). Here is a list of top 10 must have extensions. 1-ClickWeather This multi-lingual extension keeps you updated for any weather changes and also lets you quickly look at the maps and weather outlook for the next 24 hours. 1-Click Weather Extension Continue Reading �