I have a lot of google docs, on different accounts, and I don't care to set all of docs.google.com into a container - but I sure would like to tell Firefox that certain pages (documents) should only open in a certain container.
That is an interesting idea. I think it would break a lot of things but I can think of one or two places where people might be interested in exploring the tradeoffs. I would suggest filing it as a new issue on Mozilla Connect; as this one is marked...
"Allow websites to choose their own fonts" corresponds to the `use_documents_fonts` preference, which prevents a website from specifying fonts at all. (It probably allows them to specify a style, like 'mono', 'sans', or 'serif' - I'm not 100% certain...
The fonts we allow are listed in these files depending on platform. It's not perfect - while these are the standard fonts shipped on these platforms, for one reason or another, we know that some users are just missing some - but not why. On Windows,...
I am quite happy to report that we agree, and already do this! As part of the Fingerprinting Protection feature we block fonts that are not in the default list for supported OSes, which includes macOS, Windows 10/11, and recent versions of Ubuntu an...