Mutation Events Polyfill
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Overview
Mutation events will be removed from Chrome 127 for all users* which will go to Stable release on July 23, 2024. The events will begin to be removed from Canary, Dev, and Beta channels earlier than that, as an early-warning.
Polyfill:
There is a polyfill that attempts to allow existing code to continue functioning, while being powered by MutationObserver. The polyfill is located on GitHub or as an npm package.
https://github.com/mfreed7/mutation-events-polyfill#readme
https://www.npmjs.com/package/mutation-events
THIS EXTENSION: Simply loads the above polyfill on every users pages, to fix any breakage they might face from the issue.
Tags
Privacy Practices
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Not being sold to third parties, outside of the approved use cases
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Not being used or transferred for purposes that are unrelated to the item's core functionality
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Not being used or transferred to determine creditworthiness or for lending purposes
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Created from revision 3cde211b0c on 10/20/2025.