Good new everyone! We just finished an extensive update on our browser plugin, as well as the part of the website that communicates with it. As a result of this, you may need to update (and Chrome users may need to log in to the Chrome Webstore in order to update the plugin), but you will get more stable flashing of your Arduino. Those of you who had an issue where sometimes the plugin would not load in the editor page will also be glad to know this has been fixed.
Thanks to this update, we're also glad to announce that we have embedded the plugin to the project view page as well! So now, you can flash other people's code to your device and check it out without the need for a codebender account to clone it first. And when you embed your projects to your blog or tutorials, you can now give people the ability to test that code directly from your website!
Thank you, codebender! :P
Seriously, though, we hope you will enjoy the new features and the added stability.