diff --git a/NorwegianExperimentalList alternate versions/NordicFiltersABP-Inclusion.txt b/NorwegianExperimentalList alternate versions/NordicFiltersABP-Inclusion.txt
index 24fdda1f0..b7b0d3460 100644
--- a/NorwegianExperimentalList alternate versions/NordicFiltersABP-Inclusion.txt	
+++ b/NorwegianExperimentalList alternate versions/NordicFiltersABP-Inclusion.txt	
@@ -14,6 +14,7 @@
 
 ! Wish to help translate more category titles to Nordic languages 🇩🇰 🇮🇸 🇳🇴🏞 🇫🇴 🇬🇱 ❄? https://crowdin.com/project/dandelion-sprout-nordic-filter
 ! If you wish to remove cookie banners from Nordic websites, check out https://www.i-dont-care-about-cookies.eu/
+! As of 19 January 2024, syntax support for Firefox ESR v115.x, Tor Browser, and Waterfox, is somewhat spotty in this list, because this list has chose to follow a new ABP guideline from 12 January onwards that assumes native «:has» CSS in browsers, which for Firefox has only been true since Stable v122.x.
 
 ! 🇳🇴/🇩🇰: ——— Reklamer ———
 ! 🇳🇴🏞: ——— Reklamar ———
diff --git a/NorwegianExperimentalList alternate versions/XYZPrepareFilters.py b/NorwegianExperimentalList alternate versions/XYZPrepareFilters.py
index 305898b06..103e7770e 100644
--- a/NorwegianExperimentalList alternate versions/XYZPrepareFilters.py	
+++ b/NorwegianExperimentalList alternate versions/XYZPrepareFilters.py	
@@ -3227,6 +3227,12 @@ def prepare_abp(lines) -> str:
            line
         )
 
+        line = re.sub(
+           r"^(! If you wish to remove.*)", 
+           r"\1\n! As of 19 January 2024, syntax support for Firefox ESR v115.x, Tor Browser, and Waterfox, is somewhat spotty in this list, because this list has chose to follow a new ABP guideline from 12 January onwards that assumes native «:has» CSS in browsers, which for Firefox has only been true since Stable v122.x.", 
+           line
+        )
+
         if is_supported_abp(line):
             text += line + '\n'