''Is there a way to make the "Find" feature case insensitive?'' Find ("Ctrl+F") :uncheck "Match case" on the Find bar An extension that enhances the Find bar for something they have not added is *Find All :: Add-ons for Firefox *:https://addons.mozilla.org/en-US/firefox/addon/find-all/ And if you want a serious fixup for Find see/vote [https://bugzilla.mozilla.org/show_bug.cgi?id=171237 Bug 171237] even though it still misses the point, it should be "exactly" like Opera.