fix: Fix layout thrashing in options page

Fixes #708.
birchill · Aug 2, 2021 · e8073d4 · e8073d4
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## Next version
+
+- Fixed a case where the options page would flicker incessantly
+  ([#708](https://github.com/birchill/10ten-ja-reader/discussions/708)).
+
 ## v1.2.0 (2021-07-29) (Firefox, Chrome, Safari, Edge)
 
 - Added an option to display tabs on the sides or hide them altogether

diff --git a/css/options.css b/css/options.css
@@ -1,3 +1,13 @@
+:root.firefox {
+  /*
+   * Stop Firefox's scrollbars from disappearing and re-appearing triggering
+   * possible infinite updates.
+   *
+   * See: https://github.com/birchill/10ten-ja-reader/issues/708
+   */
+  overflow: hidden;
+}
+
 /*
  * Reproduce some styles from Firefox's browser_styles for other browsers' sake
  */