Here’s a tip to speed up entering a bugzilla search query. Set a ‘bug’ keyword to bugzilla’s quicksearch field: 
Now you can perform bugzilla queries from your URL bar. Here are some examples:
bug FIXED reporter:bgirard
bug component:Graphics
bug blocking-fennec:+ assigned:bgirard
Here is a complete list of flags: https://bugzilla.mozilla.org/page.cgi?id=quicksearch.html#fields. Note that status: does not work in 4.0 (The current BMO version), see bug 662444.