Thanks for your feedback. Normally upgrading within a major line (v5.x or v4.x) isn't a problem. But unfortunately there are exceptions, e.g. jQuery. I could add a option to disable upgrades, but if you load a framework from a CDN, you can load more from there. There you can also use the whitelist directly and disable the extension for a domain. It would be great if you report these sites, then I can look at it and improve the extension.