Logging into a site that redirects to another domain but requires it to be the same session, with Firefox Temporary Containers enabled

There is unfortunately no way yet to Manually add a site to a container with the multi-account container plugin.

I tried (in Firefox’s about:config) setting accessibility.blockautorefresh to true and setting network.http.prompt-temp-redirect to true and even setting javascript.enabled to false. No change in behavior; i was still whipped through the redirect page on login without a chance to stop it.

The only thing that worked was changing (again in about:config) … something about redirects to 0 instead of 20.