Firefox 115 ESR and NPAPI support

[Mæstro]

As I have proudly announced elsewhere, I am leaving Discord at last this week. A few days ago, I could also obtain a new charger for my travel computer. Hence, I have been leaving the other computer to back up my Discord logs with a close friend in the background, while I carry on with my day as normal. On that computer, I have not bothered to install any browser, but have kept Firefox 115 ESR (with appropriate settings to prevent phoning home, of course). While setting permissions for Discrub to do its job, I was surprised to discover, in an ESR series which began in 2023, an entry for plugins! I have attached my screenshot. As its description shows, it provides WebRTC support where the proprietary codecs are unavailable. Has Mozilla retained some latent NPAPI support after all? I remember hearing years ago that it has been slowly removing NPAPI support from the code base, so this apparent continued support and even use, long after it was supposedly restricted to Flash, is surprising. I must be missing something.

[UCyborg]

It's not NPAPI, whatever plugins you may see here have an interface not related to NPAPI.

[Moonchild]

The WebRTC plugins are Gecko Media Plugins, which is Mozilla's tacit admission that the plugin system is actually good, but they can't "officially" keep supporting it. So... carve out a special niche with kinda-but-not-actually NPAPI plugins to be able to keep offering features. A similar carveout is there for EME.