Tobi Reif

+1

Some browser support info is at https://www.colorfonts.wtf/ → "Web browsers".

+1

I do hope that ES6 promises become cancellable. Even for the first simple version we have now, cancellation really is a missing feature. On http://stackoverflow.com/questions/21781434/status-of-cancellable-promises you wrote: "But that depends...

There seems to be a workaround but I'd rather have an XPI that can be installed in a straightforward and secure way.

I can't know whether the copy I downloaded has been tampered with / whether that copy is malicious.

P.S. Is this an option? https://wiki.mozilla.org/Addons/Extension_Signing