@Thrawn
Do not know why the plugin isn't working in your case. It shouldn't matter what page you are on.
I tested by creating a new firefox profile with only NS +the assistant installed.
Perhaps following info might help.
In addition to yesterday's post:
After running some tests, it looks like these 2 domains are
not required (or no longer required, don't know) for the assistant to function.
amazonbrowserapp.com
bit-wishlist-us-prod.s3.amazonaws.com
It will take a couple of seconds for the installation of the assistant to complete.
Wait for it to complete, you will be automatically directed to
Amazon Assistant's firstrun page.
If all conditions are met (whitelisted domains + enabling "Cascade top document's permissions to 3rd party scripts" + accepting third-party cookies in Firefox) the assistant is able to work.
The default Amazon location in the shop assistant is amazon.com (United States).
From within the assistant you can choose from 8 country specific locations: United States, Canada, Germany, UK, Italy, Spain, France, China and Japan.
If you wish to use another location or need more than one, add the domain(s) you need (see below) to NoScript's whitelist before using the assistant.
Amazon China is a special case, only
3 domains to whitelist and it seems (after running a few tests) it is not required to enable "Cascade top document's permissions to 3rd party scripts" in NoScript. After starting firefox, then clicking the assist button, I had to wait at least 20 - 30 seconds for the window to load items, can't tell if it's the same for others.
Domains per Amazon (country) location to add to whitelist
Amazon United States
amazon.com
ssl-images-amazon.com
d2sy71lka14dqw.cloudfront.net
d2znhaxijgotb9.cloudfront.net
ubp-ubpclient-us-prod.s3.amazonaws.com
Amazon Canada
amazon.ca
ssl-images-amazon.com
d2sy71lka14dqw.cloudfront.net
d2znhaxijgotb9.cloudfront.net
ubp-ubpclient-us-prod.s3.amazonaws.com
Amazon Germany
amazon.de
ssl-images.amazon.com
d22r6og5gp6fgc.cloudfront.net
d84pa776r93e3.cloudfront.net
ubp-ubpclient-uk-prod.s3.amazonaws.com
Amazon UK
amazon.co.uk
ssl-images-amazon.com
d22r6og5gp6fgc.cloudfront.net
d84pa776r93e3.cloudfront.net
ubp-ubpclient-uk-prod.s3.amazonaws.com
Amazon Italy
amazon.it
ssl-images-amazon.com
d22r6og5gp6fgc.cloudfront.net
d84pa776r93e3.cloudfront.net
ubp-ubpclient-uk-prod.s3.amazonaws.com
Amazon Spain
amazon.es
ssl-images-amazon.com
d22r6og5gp6fgc.cloudfront.net
d84pa776r93e3.cloudfront.net
ubp-ubpclient-uk-prod.s3.amazonaws.com
Amazon France
amazon.fr
ssl-images-amazon.com
d22r6og5gp6fgc.cloudfront.net
d84pa776r93e3.cloudfront.net
ubp-ubpclient-uk-prod.s3.amazonaws.com
Amazon China
amazon.cn
ssl-images-amazon.com
s3.cn-north-1.amazonaws.com.cn
Amazon Japan
amazon.co.jp
ssl-images-amazon.com
d1oyjnop5htyha.cloudfront.net
d1vfku56wcifer.cloudfront.net
ubp-ubpclient-jp-prod.s3.amazonaws.com