Gmail's basic HTML interface *almost* works with abaco "out of the box". The failure isn't abaco, it's webfs. If you take /n/sources/contrib/fgb/cookies.c, bind or copy it over /sys/src/cmd/webfs/cookies.c, and rebuild, the new webfs and abaco will work fine.
I don't know why fgb hasn't submitted it as a patch, and I can't really evaluate the technical correctness of the changes to cookie handling. But it works, and i've not seen it break anything else.
