Thanks for the review!

Yup, solo dev over here. Certainly not an accident that it works as well as it does: attention to detail, a *lot* of testing and good feedback from users :).

As for tracking and general malicious add-ons, you can never be too cautious. Security and privacy are very important to me so I rarely run add-ons I haven't made myself.

That being said, I'll do everything in my power to safeguard the privacy and security of the users of my add-ons. The add-ons I've created were designed to be secure, minimal, concise, easily audited, never load external code, and free of obfuscation (packing).

You can probably get Mozilla to look over my code more thoroughly (I'm hoping especially for updates) if you recommend my add-on to be featured like it is in Chrome's Webstore.
https://support.mozilla.org/en-US/kb/recommended-extensions-program

(I'll probably do this myself as soon as I make a real internationalized website for this since I'm a bit of a perfectionist.)

Stay vigilant! :)