Question

Is it possible to use the jQuery instance that is loaded by the site in my extension?
I know I can include my own in the manifest file, however that is a seperate instance and therefore I cannot hook into global events of their instance! 🙂

Thanks!

Answer 1

No. You can’t. A Chrome extension has no access to the page’s variables.

Here’s a quote from the docs:

However, content scripts have some limitations. They cannot:

1. Use chrome.* APIs (except for parts of chrome.extension)
2. Use variables or functions defined by their extension’s pages
3. Use variables or functions defined by web pages or by other content scripts