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Editorial Team
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Asked: 2026-05-17T00:44:25+00:00

I have a chrome extension that very simply injects CSS before a page loads.

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I have a chrome extension that very simply injects CSS before a page loads. (I know this could be done by javascript once the page has loaded, but this causes the page to flash as it changes/renders the new CSS.)

The CSS is injected as a content script using code like:

  "css": ["mystyles.css"],
  "run_at": "document_start",

I would like to be able to remove all the CSS if the page action is clicked, but this doesn’t seem to be possible. Could I make a page action extension that disables the extension that injects the CSS?

Thanks for your help!

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1 Answer

  1. Editorial Team

    Actually it is possible to disable another extension, but only in experimental API for now. See chrome.experimental.management module.

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