I am actually trying to copy the `.config/chromium` folder with cp to a usb - but the cp comand is giving a lot of errors with 'cp : chown : filename : invalid argument' errors while running ?Well, whatever you do, make a tarfile backup before opening it again with Chromium.
As for restoring, I don't know any better way than to start Chromium and hope for the best.
In the future you might consider an extension like "Session Buddy", which works really well for me.
Yess it's fat32 . Does it mean files successfully copied?if you cp to a fat32 fs those warnings are normal