Comment by rasz

Iv been following https://github.com/Tampermonkey/tampermonkey/issues/644 since 2020. I remember a moment in 2021 where Google came out with this ridiculous notion of User code stored on User computer and executed by User Agent being "remote" because it wasnt under Google control, but somewhere around 2022 things started clearing up and Jan Biniok managed to get a working mv3 version a year ago in May.

Surprisingly this async serialize/deserialize nature of the API (https://github.com/Tampermonkey/tampermonkey/blob/cdfc253c07... ?) somehow still manages to inject and execute scripts fast enough to make them act like content scripts at document_start. The only problem is no arbitration between extensions, cant force Tampermonkey inject before uBO (tons of adblock filters disable functions required for Tampermonkey and effectively kill Tampermonkey in the process).