When searching for some bug, with the right configuration of search parameters, I often find a lot of DUP entries. I'm extensively using tabbed browsing, so usually I decide on some list items that seem to fit my need, and open them in new tabs. In case of these bugs, often quite a lot of them are DUPs to the same bug, probably one I opened already. It woule be very useful for bugs tagged duplicate if the bug number this is a duplicate of was listed as well. Even better if it was a link, so I could directly open the referenced bug.
Bugzilla feature requests need to go upstream, not to Gentoo. https://bugzilla.mozilla.org/enter_bug.cgi?product=Bugzilla
Moving open bugzilla bugs to the new bugzilla group (because I'm about to stab lots of these bugs).
please take it upstream yes.