Anfit's Mods begun as a Firefox extension, changed to a Greasemonkey userscript, finally to become a Chrome app.
It's a bundle of small tweaks to a MOSS game Space Federation Galactic Conquest (http://gc.gamestotal.com/), from UI niceties to new Ajax-driven user interface for commonly used functionalites. It also incorporates common knowledge (recipies for in-game items, etc).
All mods are listed on the repo main page (https://bitbucket.org/anfit/gc-mods) short explanations. Virtually all of the tweaks can be toggled off.
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!