diff --git a/css/userChrome-files/page_info.css b/css/userChrome-files/page_info.css
index 7b31ff3..8969fdf 100644
--- a/css/userChrome-files/page_info.css
+++ b/css/userChrome-files/page_info.css
@@ -226,4 +226,17 @@
   button:hover {
     background-color: var(--in-content-box-background)!important
   }
+}
+@-moz-document url-prefix(chrome://pippki/content/exceptionDialog) {
+  #exceptiondialog {
+    -moz-appearance: none!important;
+    background-color: var(--tone-8)!important
+  }
+  textbox {
+    -moz-appearance: none!important;
+    min-height: 20px!important;
+    background: var(--in-content-box-background)!important;
+    border: 1px solid var(--in-content-box-border-color);
+    padding: 1px
+  }
 }
\ No newline at end of file
diff --git a/userChrome.css b/userChrome.css
index 1def945..8aef864 100644
--- a/userChrome.css
+++ b/userChrome.css
@@ -1123,6 +1123,19 @@ toolbarseparator {
     background-color: var(--in-content-box-background)!important
   }
 }
+@-moz-document url-prefix(chrome://pippki/content/exceptionDialog) {
+  #exceptiondialog {
+    -moz-appearance: none!important;
+    background-color: var(--tone-8)!important
+  }
+  textbox {
+    -moz-appearance: none!important;
+    min-height: 20px!important;
+    background: var(--in-content-box-background)!important;
+    border: 1px solid var(--in-content-box-border-color);
+    padding: 1px
+  }
+}
 #navigator-toolbox::after {
   border-bottom: 0!important
 }
diff --git a/userContent_imports.css b/userContent_imports.css
index a61746d..44a16f4 100644
--- a/userContent_imports.css
+++ b/userContent_imports.css
@@ -37,4 +37,4 @@
 @import "css/userContent-files/webextension-tweaks/umatrix.css";
 @import "css/userContent-files/webextension-tweaks/vim_vixen.css";
 @import "css/userContent-files/webextension-tweaks/violentmonkey.css";
-@import "css/userContent-files/webextension-tweaks/youtube_video_and_audio_downloader.css"
+@import "css/userContent-files/webextension-tweaks/youtube_video_and_audio_downloader.css"
\ No newline at end of file