Thanks; I disabled quite a few non-critical addons based on this list and was able get the switch in about:support to flip. Will see if it's worth it! All of

Thanks; I disabled quite a few non-critical addons based on this list and was able get the switch in about:support to flip. Will see if it's worth it! All of the addons I disabled are listed as "unknown" so I suspect they will all just work fine if I forced multiprocess but better safe than sorry. Thanks for the information.