Hi Yuhara,
first of all, thanks for your rating. It's great to hear that you like the add-on. 😀

The feature you requested (a common context menu entry for generating the QR code) is actually already implemented by a contributor in https://github.com/rugk/offline-qr-code/pull/336 and will be released in the future. Thanks for your suggestion, in any case!

If you want to find more information on how to support us, have a look at https://github.com/rugk/awesome-emoji-picker/blob/master/CONTRIBUTING.md#support-us. Thanks. 😃

Best regards,
rugk

Hi, and thanks a lot for your rating. I'm sorry that the extension does not satisfy your expectations. If I understand you correctly, you do not like the way the extension showed a prompt asking you for a review on addons.mozila.org.

That said, I can reassure you the likelihood to see such a prompt is very low and e.g. only shown after you have used the extension for some time and e.g. not shown again if you have dismissed it explicitly twice.

As this add-on is open-source, you can also check it's source code at https://github.com/rugk/offline-qr-code/blob/master/src/common/modules/data/Tips.js, if you are interested in the technical details or want to verify my claims here.
Also notice there are other helpful tips that may occasionally been shown, but they are really kept to a minimum and many users do e.g. not know that they can help the add-on and support it by writing a review.

I am afraid this has disturbed you and want to apologise.
If you have further issues or questions, feel free to ask or suggest a feature by opening an issue on https://github.com/rugk/offline-qr-code/issues/. Thanks.

If this helped, it would be glad if you could adjust your voting.

Best regards,
rugk