Fixed

-Resolved Firefox highlight failures where highlights would briefly appear and then disappear or fail to re-apply.
-Eliminated unintended highlight clearing caused by event timing differences between browsers.
-Fixed bucket interaction logic that could clear highlights when hovering or re-clicking without valid text data.
-Restored consistent highlighting on complex sites (including AP News), even when articles are segmented across multiple DOM containers.

Improved

-Per-bucket highlight toggling
-Click a bucket to turn its highlights ON
-Click the same bucket again to turn them OFF
-Multiple buckets can now be highlighted simultaneously
-Non-destructive highlight behavior
-Activating one bucket no longer removes highlights from others
-Removed hover-based preview behavior
-Highlights are now strictly click-based and persistent until toggled off
-More resilient DOM handling
-Highlights remain stable across page mutations, reflows, and dynamic content updates

Under the Hood

-Refactored highlight lifecycle to avoid global clears
-Added bucket-scoped highlight management using DOM attributes
-Improved message handling consistency across browsers
-Reduced reliance on browser-specific timing assumptions