Funsize is very close to be enabled in production! It has undergone a Rapid Risk Assessment procedure, which found a couple of potential issues. Most of them are either resolved or waiting for deployment.
To make sure everything works as expected and to catch some last-minute bugs, I added new update channels for Firefox Nightly and Developer Edition. If you are brave enough, you can use the following instructions and change your update channels to either nightly-funsize (for Firefox Nightly) or aurora-funsize (for Firefox Developer Edition).
TL;DR instruction look like this:
Enable update logging. Set
truein about:config. This step is optional, but it may help with debugging possible issues.
Shut down all running instances of Firefox.
defaults/pref/channel-prefs.jsin your Firefox installation directory and change the line containing
Continue using you Firefox
You can check your channel in the About dialog and it should contain the channel name:
If you see any issues, please report them to Bugzilla.