diff --git a/Syntax-quirks.md b/Syntax-quirks.md
index a20b2a3..f496209 100644
--- a/Syntax-quirks.md
+++ b/Syntax-quirks.md
@@ -2,15 +2,15 @@ See also: [Filter performance](./Filter-performance)
 
 - Filters match on word boundaries unless explicitly wildcarded
     - See <https://github.com/uBlockOrigin/uBlock-issues/issues/954#issuecomment-602041890>
-- Looking-like-domain filters match only in domain part of URL
-    - See [HOST optimiztion](./Static-filter-syntax#hosts-files)
+- Looking-like-domain filters match only in [host part of URL](https://en.wikipedia.org/wiki/URL#Syntax)
+    - See [HOSTS optimization](./Static-filter-syntax#hosts-files)
 - Negated domains in cosmetic filters work like exception (In ABP generic blocking filter overrides filter with negated domain).
     - See <https://github.com/uBlockOrigin/uBlock-issues/issues/388>
 - One filter can be counted as many, [example](./Static-filter-syntax#badfilter)
 - `$document` works only as [blocking filter](./Static-filter-syntax#document-for-entire-page-exception)
 - Generic cosmetic filters don't work in [Shadow DOM](https://developer.mozilla.org/en-US/docs/Web/Web_Components/Using_shadow_DOM)
     - See <https://github.com/uBlockOrigin/uBlock-issues/issues/803>
-- Popup filters will not close pages opened by direct user action
+- Popup filters will not close pages opened by direct user action when the page'S URL matches the link clicked
     - See <https://github.com/uBlockOrigin/uBlock-issues/issues/774>
 - Domain filter in uBO matches [_fully qualified domain name_](https://en.wikipedia.org/wiki/Fully_qualified_domain_name) (FQDN, these with dot at the end), where in ABP match is exact.
     - See <https://github.com/uBlockOrigin/uAssets/issues/7619>