Two non-critical issues:
1) Text in side menu is out of visible bounds:
I'd suggest trimming the text to just "Neat URL", maybe "Neat URL enabled", but that is a bit redundant because of addon's icon state and/or tooltip text.
2) Options page having scroll bars for no obvious reason:
Other addons which are using similarly designed options (like Pure URL or Decentraleyes) seem quite happy with the same window width or input fields.
Two non-critical issues: 1) Text in side menu is out of visible bounds: I'd suggest trimming the text to just "Neat URL", maybe "Neat URL enabled", but that is a bit redundant because of addon's icon state and/or tooltip text.
2) Options page having scroll bars for no obvious reason: Other addons which are using similarly designed options (like Pure URL or Decentraleyes) seem quite happy with the same window width or input fields.