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GitLab: hide GitLab Duo promos

Hides the pop-up nags and banners that promote the GitLab Duo AI assistant.

Code to copy

/* Hide GitLab Duo / AI promotional nags and banners */
[data-testid="duo-chat-promo"],
.duo-chat-callout,
.js-duo-chat-callout,
.gl-banner:has([href*="gitlab-duo"]) {
  display: none !important;
}

How to use this example

1. Copy the code with the button above.
2. Install JustZix (2 minutes) and open the extension on the target page.
3. Add a new rule matching that page.
4. Paste the code into the rule's CSS panel and save — the effect appears instantly.