While Opera is the leading mobile web browser developer, it seems forever destined to be the little guy in the desktop segment. It’s fast, functional and secure, yet it has never quite managed to catch the fancy of a large section of internet users in the way Firefox and Chrome did.
In my honest opinion, the biggest chink in Opera’s armor has been extensibility. Sure, you can modify the toolbar, edit the context menu, install bookmarklets and buttons, and even play around with widgets; however, when it comes to really captivating and powerful extensions like StumbleUpon or LastPass, Opera doesn’t have an answer.
Extensions are something I have been requesting for a long long time. Opera always seemed to be reluctant to introduce an API due to security and performance concerns. Fortunately, the Norwegians have finally found a way to implement extensions without impacting performance or compromising security.
An alpha build of Opera 11 is expected to be released soon. In the meantime, check out this video from TechCrunch, which demonstrates Reddit, Wikipedia and StumbleUpon extensions for Opera.