But anyone who has used the browser's own developer tools for working with IndexedDB databases will probably agree that there must be more convenient methods. And even though Kahuna can't do everything I want it to yet, it's certainly a good start.
Since yesterday, the webextension is available in the Chrome Web Store [1] and as a Firefox Add-On [2].
Feedback, comments, bug reports, and feature requests are all more than welcome!
[1] https://chromewebstore.google.com/detail/kahuna/ilafpdbgcaod...
[2] https://addons.mozilla.org/en-US/firefox/addon/kahuna-the-in...