More options for copying plain text than it's closest competitor, and offers to convert to html, markdown and bbcode. Great add-on!

很好很强大！有些复制不了的内容可以右键纯文本呦

Does what it says on the tin, and when it doesn't the dev fixes things fast.

make copy great again!

Finally an add-on for Firefox which can reliably copy html text and images to markdown text.
It was originally developed for Chrome but the author ported it to Firefox as well. Fantastic...

Looking forward to seeing support for key bindings (the author is looking for a neat way to do so) and to copy html tables into markdown text (this is planned).