Guest tip from Stefan Arentz:
“Bugzilla actually does have HTML emails! [As of version 4.2, but it’s been backported to bugzilla.mozilla.org’s 4.0 installation – Ed.] I always though that it did not because I did not look further than the “Email Preferences” tab. But there actually is a “Preferred email format” under the “General Preferences” tab.
This makes Bugzilla emails 100x easier to read on a phone.”