[benjaminjackman]

That's exciting about Firefox, though I really wish that firefox would support OPFS in such a way as to allow selecting the directory where the files are located, beyond just persistence, there are some use cases where that is required (vscode.dev for example).

[streptomycin]

Unfortunately, the whole point of OPFS is to not do that. Mozilla and Apple thought it'd be bad for security to let you read/write arbitrary files/folders on the real file system, even with a permissions dialog, so a fake filesystem only viewable by an individual website was the compromise solution that everyone agreed to implement.