I would recommend separating the object number from its name with a dash ("-"), but that's just my personal preference.

What I think is much more important, the addon's description should be in English, so that foreigners do not just scroll on when they see the Kanji.

PS: Thank you, good Sir, you certainly make Firefox great again!

かつての非公式日本語化Wikiのように読むことができるのは良いのですが、いつからかオブジェクト名が表示されなくなっています。