There are many ways to search Bugzilla, each with a substantial following.
QuickSearch
https://www.squarefree.com/bugzilla/q...arch-help.html
https://bugzilla.mozilla.org/page.cg...icksearch.html
If you're already familiar with Bugzilla's fields, this is the fastest way to search. The search boxes in Bugzilla's header and footer are QuickSearch boxes. Assign it a keyword!
Advanced Search
https://bugzilla.mozilla.org/query.c...ormat=advanced
Includes form elements for many of Bugzilla's fields, as well as "boolean charts" that let you do complicated searches with any Bugzilla field. Includes some keyboard shortcuts, but still much more mouse-dependent than QuickSearch.
Find a specific bug
https://bugzilla.mozilla.org/query.c...ormat=specific
Awesomebar
Visited a bug recently, and want to get back to it? Just type a word from its summary into Firefox's address bar and let the awesomebar find it for you?