A local browser filter can hide a matching element without changing your X account or recommendation system. The example below depends on X’s page markup and has not been verified against a signed-in X timeline in this review.

Identify the element you want to hide

First confirm that the unwanted “reaction to” label is the element you mean. A rule that hides an entire post can also remove context you wanted to read. Save a screenshot and note the browser and extension version before testing. There is no evidence here that hiding an element changes how X selects posts.

Example filter and how to test it

Use a browser and blocker version that supports custom cosmetic filters. Full uBlock Origin and uBlock Origin Lite have different capabilities; do not assume instructions for one apply to the other or that every browser store offers the same extension.

x.com,twitter.com##article[data-testid="tweet"]:has([data-testid="videoReactionAttribution"])
  1. Keep a copy of your existing custom filters.
  2. Open the blocker dashboard and its custom-filter control, if available.
  3. Add only this example rule and apply it.
  4. Reload the timeline and check what disappeared.
  5. If it hides the wrong content or does nothing, remove the rule and reload.

The rule targets an internal data-testid value. X can change it without warning. This is an unverified example retained for troubleshooting, not a current universal fix.

Browser changes do not carry into the native app

A local filter affects the browser where it runs. It does not install into X’s iOS or Android app or apply to another computer. Use the feed and “not interested” controls actually available in your client if you prefer account-level choices.

Restore the page if the filter breaks

Delete the custom rule, apply changes and reload. If necessary, disable the extension for x.com while diagnosing. Do not keep adding broad selectors to hide unrelated posts. Consult the blocker’s current project documentation for compatibility and permissions.

Sources and checks

Reviewed on October 16, 2026. uBlock Origin project documentation.