Originally published at: http://www.howtogeek.com/166304/cross-browser-extension-installation-now-possible-with-opera-and-google-chrome/
People have been curious if there would be cross-browser compatibility for extensions due to Opera’s recent switch to the browser engine that Google Chrome uses. That question has now been answered. The OMG! Chrome! Blog has put together a nice tutorial on how to get cross-browser extension compatibility set up and working with your browser of choice.