"Copy link" from the contextual menu adds the URL as data with MIME type text/uri-list to the clipboard.
This data can be pasted on Android widgets like the URL bar, but not on a form in a website.
The problem is that Gecko is only able to paste content of type "text/plain". The solution is to store the link in both formats (as URI and as text) in the clipboard.
"Copy link" from the contextual menu adds the URL as data with MIME type text/uri-list to the clipboard.
This data can be pasted on Android widgets like the URL bar, but not on a form in a website.
The problem is that Gecko is only able to paste content of type "text/plain". The solution is to store the link in both formats (as URI and as text) in the clipboard.