diff --git a/packages/css/src/components/search-field/search-field.scss b/packages/css/src/components/search-field/search-field.scss
index f3ffaf1450..8757fc4985 100644
--- a/packages/css/src/components/search-field/search-field.scss
+++ b/packages/css/src/components/search-field/search-field.scss
@@ -48,6 +48,7 @@
 
 .ams-search-field__input::placeholder {
   color: var(--ams-search-field-input-placeholder-color);
+  opacity: 100%; // This resets the lower opacity set by Firefox
 }
 
 .ams-search-field__input::-webkit-search-cancel-button {
diff --git a/packages/css/src/components/text-area/text-area.scss b/packages/css/src/components/text-area/text-area.scss
index 96aeb5de55..3a0256e515 100644
--- a/packages/css/src/components/text-area/text-area.scss
+++ b/packages/css/src/components/text-area/text-area.scss
@@ -37,6 +37,7 @@
 
 .ams-text-area::placeholder {
   color: var(--ams-text-area-placeholder-color);
+  opacity: 100%; // This resets the lower opacity set by Firefox
 }
 
 .ams-text-area:disabled {
diff --git a/packages/css/src/components/text-input/text-input.scss b/packages/css/src/components/text-input/text-input.scss
index e839902c41..4d09106fae 100644
--- a/packages/css/src/components/text-input/text-input.scss
+++ b/packages/css/src/components/text-input/text-input.scss
@@ -35,6 +35,7 @@
 
 .ams-text-input::placeholder {
   color: var(--ams-text-input-placeholder-color);
+  opacity: 100%; // This resets the lower opacity set by Firefox
 }
 
 .ams-text-input:disabled {