find tickets but remember permission denied

I try to find any entry that contains "thunderbird" to remove them

me @ algorithms: ~ $ sudo find / -iregex ". * thunderbird. *" | grep permission
search: '/ run / user / 1000 / gvfs': Permission denied

but find does not have permission to access & # 39; / run / user / 1000 / gvfs & # 39 ;.

I have realized that I have the unlimited privilege to manipulate in administrator mode.

How could I do things freely without any reminder of "permission denied"