diff --git a/browser/css/dark.css b/browser/css/dark.css
index 8cfd7802ec37ebc36add9178c0e549655a307e19..315ce16ab69c35dadc827a691587752a263231d9 100644
--- a/browser/css/dark.css
+++ b/browser/css/dark.css
@@ -21,6 +21,11 @@ body {
   font-family: ubuntumedium, Arial Bold, Helvetica, Sans-serif;
   bottom: 1px;
 }
+/* for FF override */
+textarea {
+  font-family: ubuntulight, Arial, Helvetica, Sans-serif;
+  font-size: 100%;
+}
 /* texts that are not sequences nor identifiers */
 h2 {
   margin-top: 2px;
diff --git a/browser/css/light.css b/browser/css/light.css
index b7132ec0b65d09ea0a2475467dcf03323a24ba33..5c2631565ea7806552a5d7c4c5fb678494f1c9bb 100644
--- a/browser/css/light.css
+++ b/browser/css/light.css
@@ -21,6 +21,11 @@ body {
   font-family: ubuntumedium, Arial Bold, Helvetica, Sans-serif;
   bottom: 1px;
 }
+/* for FF override */
+textarea {
+  font-family: ubuntulight, Arial, Helvetica, Sans-serif;
+  font-size: 100%;
+}
 /* texts that are not sequences nor identifiers */
 h2 {
   margin-top: 2px;
diff --git a/browser/css/vidjil.less b/browser/css/vidjil.less
index 41f60c5467cc3a3950ad90866fa85eb3519dc2b7..79489da8f4cc51436d807f8f1da0492d153100a8 100644
--- a/browser/css/vidjil.less
+++ b/browser/css/vidjil.less
@@ -38,6 +38,12 @@ body {
   bottom: 1px;
 }
 
+/* for FF override */
+textarea {
+  font-family: ubuntulight, Arial, Helvetica, Sans-serif;
+  font-size: 100%;
+}
+
 /* texts that are not sequences nor identifiers */
 
 #info, .popup_msg, .menu, .menu a