This is what the webext-signed-pages [1] extension does. This only works in a secure manner with Firefox though because Chrome extensions don't have access to t

This is what the webext-signed-pages [1] extension does. This only works in a secure manner with Firefox though because Chrome extensions don't have access to the content of the HTTP responses [2]. [1] https://github.com/tasn/webext-signed-pages https://github.com/tasn/webext-signed-pages [2] https://bugs.chromium.org/p/chromium/issues/detail?id=487422 https://bugs.chromium.org/p/chromium/issues/detail?id=487422