ReadDict allows you to keep track of any number of vocabulary lists in several different languages (Russian, German, Spanish, French are available right now). You can highlight sections of text, view translations, and even link out to a mobile-friendly flashcard view for studying vocabulary on the go. The plugin also allows for bookmark management so that you can come back to a a specific point on a long page without having to scroll through and remember where you stopped off.
This is in the very early stages, but it's functional, so I wanted to get it out there for evaluation and educational use. Enjoy!
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!