5 minute fork creates a temporary clone of a github repo when the repo owner hasn't hosted their demo. This extension adds a '5 minute fork' button to github repos to quickly and easily clone.
As explained on HackerNews:
"If a github repo has an index.html file and you click on it, github will show you the source instead of the webpage. 5minfork shows you the webpage so that you can have an idea of what the repo is about."
Extore is a team of professionals who are passionate about creating extensions for web browsers. This devotion also gives us opportunity to appreciate work of other people. We get inspired by useful, open source extensions made by developers all over the world. Our strong belief is that one should share helpful add-ons with others. That’s why we’d like to present you our ever-growing list of favourite extensions that have inspired us. Moreover, as you probably have already learned, sometimes struggling for the best brings an end to the good. Talking about add-ons it often turns out that an upgrade is worse then previous version. Also it can become really tricky to get back to the beloved version of your favourite extension. That’s why we’re going to make not only the latest, but all versions of our favourite (and we hope yours too) add-ons available for download. No more compromises, just stick to the version you really like!