Checklist

~~Set reserved_slaves ^DESKTOP ^MOBILE ^RELEASE ^BETA ^ESR~~
Check to make sure you have all of the different types of slaves that you need ^DESKTOP ^MOBILE ^RELEASE ^BETA ^ESR
Start the automation ^DESKTOP ^MOBILE ^RELEASE ^BETA ^ESR
Sign Android builds ^MOBILE ^RELEASE ^BETA
Reset reserved_slaves and unlock slaves ^DESKTOP ^MOBILE ^RELEASE ^BETA ^ESR
Push to mirrors ^DESKTOP ^RELEASE
Publish Fennec ^MOBILE ^RELEASE ^BETA
Run pushsnip ^DESKTOP ^RELEASE ^BETA ^ESR
Update bouncer links ^DESKTOP ^RELEASE ^BETA
Apply Throttling ^DESKTOP ^RELEASE
Verify throttling ^DESKTOP ^RELEASE
Update XULRunner wiki pages ^DESKTOP ^RELEASE
Post-release tasks ^DESKTOP ^RELEASE
Get the Browser Choice website updated ^DESKTOP ^RELEASE

Notes

Nothing to do with l10n milestone for chemspills.
Reserved slaves set to 8
Landed config file updates
Tagged buildbot-configs, buildbotcustom, tools with {FIREFOX,FENNEC}_16_0_1_{RELEASE,BUILD1}