I have a couple of different Zimbra servers and I keep them running in Firefox Tabs, and I want to ensure I don't get them mixed up, so I'd like to change the page title prefix of 'Zimbra' (i.e.'Zimbra: Inbox', 'Zimbra: Contacts' etc) to something like 'QA', so pages would read 'QA: Inbox', 'QA: Contacts', etc.

Any idea how to do this? I couldn't find anything in the wiki.