Running nightly comes with tradeoffs, but I've had great experiences with firefox-trunk from https://launchpad.net/~ubuntu-mozilla-daily/+archive/ubuntu/ppa htt

Running nightly comes with tradeoffs, but I've had great experiences with firefox-trunk from https://launchpad.net/~ubuntu-mozilla-daily/+archive/ubuntu/ppa https://launchpad.net/~ubuntu-mozilla-daily/+archive/ubuntu/... which is maintained by Ubuntu developers.