First, thanks for making the great extension.

Background

The tips shows randomly, in 20% chance maybe? And it also randomly resizes the popup window, sometimes shows unexpectedly large window like if this message appears:

Proposed solution

Please give a option for hiding the random tips.

Alternatives

Preserving fixed space for the tips can be an option, instead of randomly hiding tips.

etc

• Screenshot is hard to take because it... randomly appears.
• (naive idea warning, you can safely ignore this) I think some of tips can be removed, by putting different places. ex)
  • tipSaveQrCode: put a 'Save' button in popup window.
  • tipQrCodeHotkey: move to settings page, and explain how to configure.
  • tipYouLikeAddon, tipTranslateAddon, tipDonate: put as links in either settings page, popup window, or both.