I think in your case it would be just clever to read the instructions on that guide carefully to see if that "browser extension data" trick could help you somehow.
https://metamask.zendesk.com/hc/en-us/ar...Vault-Data
it should be pretty clear from these paragraphs when this way of recovering important data could work and help you. Within that page it's also always explained that the password is needed (so you need to give the tool both the "browser extension data" and password, it seems).
https://metamask.zendesk.com/hc/en-us/ar...Vault-Data
it should be pretty clear from these paragraphs when this way of recovering important data could work and help you. Within that page it's also always explained that the password is needed (so you need to give the tool both the "browser extension data" and password, it seems).