Firefox Widevine Plugin -

Here's a high-level overview of how the Firefox Widevine plugin works:

Firefox drops the Widevine CDM into an isolated software "sandbox" container. The module operates independently from the main browser process, preventing the proprietary binary from gathering data or viewing active browser tasks. firefox widevine plugin

It is important to understand the trade-off. Widevine is a "closed-source" (proprietary) binary blob. Here's a high-level overview of how the Firefox