The use case is: i have 20+ jupyter notebooks in a single folder that i worked on. Now i just want to open them all to view and or copy some stuff. I dont want each of them to open up a kernel. Is there a way to do this? Something like a view-only mode?
You can install nbviewer locally and use that to view your notebooks. You may find additional information here helpful. If your notebooks are online, you can directly use nbviewer that is already hosted online at https://nbviewer.jupyter.org/ .
Alternatively, there may be a Firefox extension, see here.