diff --git a/background/style-manager.js b/background/style-manager.js
index 82c9ce2c..fed12aee 100644
--- a/background/style-manager.js
+++ b/background/style-manager.js
@@ -184,7 +184,8 @@ const styleMan = (() => {
},
};
}
- const {exposeStyleName} = prefs.__values;
+ // TODO: enable in FF when it supports sourceURL comment in style elements (also options.html)
+ const {exposeStyleName} = CHROME && prefs.__values;
const sender = CHROME && this && this.sender || {};
if (sender.frameId === 0) {
/* Chrome hides text frament from location.href of the page e.g. #:~:text=foo
diff --git a/options.html b/options.html
index 3b62c0a0..cf7445c9 100644
--- a/options.html
+++ b/options.html
@@ -269,7 +269,7 @@
-