Thank you for your review.

I don't quite understand why you say the settings are "difficult to understand." Unless you clearly explain what exactly is difficult to understand and how you think it should be changed, there's no possibility of improvement.

Regarding the mobile version, this is a Firefox issue. I believe the behavior will change immediately once Firefox addresses the issue. I believe the problem can be resolved without changing the extension. Please refer to the following document for information on the status of the mobile functionality:

https://github.com/k08045kk/CopyTabTitleUrl/wiki/Mobile

That's all.