How can I change the script download address with an extension?

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legrapho2012-11-11 23:29:38

JavaScript

legrapho, 2012-11-11 23:29:38

The general task is this: you need to redefine js functions on a specific page using an extension.
In Chrome, the issue is solved using the function chrome.webRequest.onBeforeRequest.addListener
For example, there is a page:

<head>
<script type="text/javascript" src="http://mozilla.org/script.js" />
</head>
<body>
..
</body>

The extension replaces the loaded script with http://my-mozilla.org/script.js
In Firefox, apparently, there is no analogue ( question on the stack )
There is an option to prohibit the loading of the script, as adblock does, for example, and add a content script to the page that will override the functions.
However, I still don't know the best way to do this.
Any thoughts on this are welcome.

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1 answer(s)

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Piratborn, 2016-03-20
@Piratborn

As far as I understand, you need to replace the script on someone else's site? Greasemonkey
extension is suitable for this . Google it or userjs