Thank you for making this available. I noticed that the extension loads Google Fonts from `fonts.googleapis.com` and `fonts.gstatic.com` in the HTML files. That means Firefox makes external network requests when the UI opens. I did not see any analytics or data transmission code, but these font requests technically contradict a strict reading of “No external servers.” You may want to consider bundling the fonts locally to fully align with the privacy statement. If this were fixed i would give this 5 stars.