Usage to scroll through your open tabs
Way 1 : Press ALT Key + mouse wheel
Way 2 : Press mouse right button + mouse wheel
When you scroll your mouse has to be anywhere over the page but not over the tabs.
Also, if you once disabled the extension and re-enable it, all the tabs has to be reloaded to register the event (restart chrome is fine).
Where it works
It's working on every pages with real content loaded EXCEPT internal "chrome://" pages or "https://chrome.google.com/*" pages.
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!