diff --git a/css/userContent-files/webextension-tweaks/generic_style.css b/css/userContent-files/webextension-tweaks/generic_style.css
index bbd0973..29bb08f 100644
--- a/css/userContent-files/webextension-tweaks/generic_style.css
+++ b/css/userContent-files/webextension-tweaks/generic_style.css
@@ -41,6 +41,7 @@
                url-prefix("moz-extension://tree_style_tab_UUID/options/options"),
                url-prefix("moz-extension://google_translator_for_firefox_UUID"),
                url-prefix("moz-extension://enhancer_for_youtube_UUID/options.html"),
+               url-prefix("moz-extension://flash_and_video_download_UUID/html/options.html"),
                url-prefix("moz-extension://generic_styling_1_UUID"),
                url-prefix("moz-extension://generic_styling_2_UUID"),
                url-prefix("moz-extension://generic_styling_3_UUID"),
diff --git a/scripts/webextension_mappings.txt b/scripts/webextension_mappings.txt
index 98c9c4c..aef1d1b 100644
--- a/scripts/webextension_mappings.txt
+++ b/scripts/webextension_mappings.txt
@@ -7,6 +7,7 @@ custom_titlebar_text|{b5a43a70-4092-4899-9c44-63799150b35e}
 dark_mode|{174b2d58-b983-4501-ab4b-07e71203cb43}
 decentraleyes|jid1-BoFifL9Vbdl2zQ@jetpack
 enhancer_for_youtube_UUID|enhancerforyoutube@maximerf.addons.mozilla.org
+flash_and_video_download_UUID|{bee6eb20-01e0-ebd1-da83-080329fb9a3a}
 google_translator_for_firefox|translator@zoli.bod
 https_everywhere|https-everywhere@eff.org
 mind_the_time|jid0-HYNmqxA9zQGfJADREri4n2AHKSI@jetpack