added Firefox release note for popover=hint (mdn#43332)

Author: dletorey

files/en-us/mozilla/firefox/releases/149/index.md

@@ -18,7 +18,9 @@ Firefox 149 is the current [Beta version of Firefox](https://www.firefox.com/en-
 
 <!-- ### Developer Tools -->
 
-<!-- ### HTML -->
+### HTML
+
+- The [`popover`](/en-US/docs/Web/HTML/Reference/Global_attributes/popover) global attribute now supports the [`hint`](/en-US/docs/Web/HTML/Reference/Global_attributes/popover#hint) value. Popovers with the `hint` value will not close `auto` popovers when they are displayed, but will close other hint popovers. ([Firefox bug 1867743](https://bugzil.la/1867743)).
 
 <!-- No notable changes. -->